Category Archives: Quantum Physics
Understanding the Limits of Scientism – Discovery Institute
Photo credit: Braxton Apana via Unsplash.
As I have argued here earlier, in sketching the science of purpose, the complexity of life is only comprehensible by the human mind in retrospect. Through reverse engineering, modern science has done an elegant job in revealing the mechanisms of life. But that is certainly far less an accomplishment than designing the whole enterprise from scratch. In philosophical terms, we can understand the mechanics of life onlya posteriori.But we do not have the ability to grasp the intentionality of the mind of the creator, which would be required in order to understand lifea priori.
For these reasons, life is ultimately irreducibly complex, and the best we can do to understand life is through observation of the finished product. The unpredictably complex properties of lifearise through what we callemergence.
These observations describe the ultimate limits of our understanding, not just for now, but in principle.To see why that is, it is helpful to understand the analytic process of the scientific method, where the limitations lie.
Every framework of knowledge has a methodological approach. In ancient Greece, all science was calledphysics.But before science could be conducted, there must be thescience of knowing.This they called metaphysics.But it is important to keep in mind that metaphysics is required for all kinds of knowing, not just analytical science. That is why the term is used in all branches of knowledge, especially theological and philosophical knowledge.
The analytical method of modern science is straightforward. It is a little more than a subject measuring an object.Newton measured the velocity of an apple falling from a tree. Doctors measure vital signs and laboratory values.Engineers measure the properties of materials to build a machine. The history of human civilization has been transformed by these efforts, so that we find ourselves in the mechanistic world of modern science.
Just fifty years ago, biologists, using this method to explicate the chemical basis of life, anticipated that the most intricate details of our existence were subject to a full explanation. But they were wrong.E. O. Wilsons dream ofConsilience: The Unity of Knowledge(1998) has evaporated. Why?
The reason for the failure of Wilsons project, and the failure of other materialist endeavors to remove the creator from what we know and understand, lies right here.Empirical science can only know and thus understand that which a conscioussubjectcanobserve.This is known as subject-object metaphysics,or SOM.While that may sound simple enough, some of the greatest minds in the history of Western science have written at great length about the fundamental limitation of this approach. Ren Descartes, a founding father of modern science, posited this dualism, which remains at the inner core of science to this day. Descartess dualism requiresa separation between subject and observerin order for the logical framework to operate.
The fundamental limitation of SOM is this: it turns out that the entire logical framework of subject-object metaphysics collapses when subject = object, since there is no possible separation. Sounds esoteric, you say?
Not at all. This great impasse in empirical science was reached early in the 20th century when quantum mechanics was first being developed.How do we observe an object?By bouncing light (or some other signal) off it and registering the resulting information by a measuring device or by an observer.But wait.What happens when the signal we are sending to measure the object, lets say a photon, has to measure another photon? The outcome, to be frank, is chaos. This ultimate limitation,never to be overcome, is famously known as theHeisenberg uncertainty principle,named for the father of quantum mechanics, Werner Heisenberg.
Most people dont care much about quantum mechanics.But we all care about our conscious selves and our ability to see and understand the world.What happens when we try to apply SOM to vision or consciousness?We get exactly the same result as the quantum physicists do.Consciousness is a matter of self and subject.And when the subject applies SOM to self and consciousness, there can be no rational result. That is because the subjectisthe object, and the separationof subject and object, upon which the logical framework must operate, is irreparablyviolated.
Many afaon de parlerhas been used to obscure this conundrum.For example, quantum physicists refer to the collapse of the wave function, as if it were a real thing a literal collapse when of course it isnt one.When we talk about what we see and think, we speak of images in ourbrain, yet of course, there are no images in our brain.In fact, we do not have even the dimmest understanding of how memory, thought, emotion, and the sensations of color and soundemerge from our material brains and into consciousness.All attempts at applying SOM to solve these problems must, in principle, fail.
Recognizing this limitation ofscientism,we have no choice but to reject it as the ultimate explanation of our place here on this planet. We must then recognize the need to return to the one and only ultimate source of knowledge, the mind of a creator.
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The power of representation and connectivity in STEM education – MIT News
On Oct. 13 and 14 at the Wong Auditorium at MIT, an event called Bridging Talents and Opportunities took place. It was part of an initiative led by MIT Latinx professors and students aimed at providing talented Latinx high school students from the greater Boston area and various Latin American countries a unique chance to explore the world of science and innovation within MIT's campus.
The primary goal of the effort is to inspire and empower talented, low-income high school scholars, particularly those from first-generation and low-income backgrounds. These students are driven by the inspiring life stories of Latinx scientists who have overcome similar circumstances to make remarkable contributions to the field and who are now affiliated with some of the world's top universities.
The two-day gathering commenced with a roster of esteemed speakers who were scientists, academics, philanthropists, and trailblazing entrepreneurs, most of Hispanic and Latin American origin. They shared stories of success and their affiliation with prestigious institutions globally, and underscored the achievements and the heights to which one can rise with determination and support.
As part of the event, students, parents, and teachers had the opportunity to visit some science labs at MIT such the Laboratory for Nuclear Science (LNS)s Laboratory of Exotics Molecules and Atoms, Laboratory for Atomic and Quantum Physics, and the Robotic Lab. With the support of the Harvard Colombian Student Society the group was also able to take a tour to the Harvard University campus.
Diana Grass, an organizer of Bridging Talents and Opportunities, is a second-year PhD student in medical engineering and medical physics in the Harvard-MIT Health Sciences and Technology program. She also serves as the co-founder and co-president of the Graduate First Generation Low-Income student group at MIT (GFLI@MIT).
"In countries like Colombia, it takes an astounding 11 generations, according to the OECD [Organization for Economic Co-operation and Development], to escape poverty,"Grass emphasized. "Education is the most powerful tool to break this chain. As a first-generation student and a Latina, I have firsthand experience of the socioeconomic obstacles that hinder educational pursuits and degree attainment. Bold actions are needed if we are to address diversity, the gender gap, and equity within the realm of science. It's immensely gratifying that we can drive these actions forward from top universities like MIT.
Grass added, Latino students especially women have historically been underrepresented in STEM careers, underscoring the urgency of instilling early motivation in the educational journey. Creating opportunities for first-generation low-income students is an essential step in this direction. This initiative recognizes that addressing educational disparities requires proactive measures.
The event also hosted Jeison Aristizabal, recognized as the 2016 CNN Hero of the Year and the founder of the first Latin American University for people with disabilities. Overcoming his own cerebral palsy, Aristizabal is now a social communicator and lawyer, redefining the concept of disability and serving as an inspiration to countless students with disabilities. Grass states, His journey highlights the extraordinary achievements that can be realized through perseverance and determination.
Edwin Pedrozo-Peafiel, another event organizer, is a research scientist in the Research Laboratory of Electronics and MIT-Harvard Center for Ultracold Atoms. He stated that Seeing such a dynamic group of accomplished individuals from similar cultural backgrounds made a compelling statement. It's essential that the younger generations see successful figures they can identify with. Representation in any field, but particularly in STEAM [science, technology, engineering, arts, and mathematics], is not just about checking a box. It's a potent source of inspiration. When young students can look up and see someone who looks like them, speaks like them, and shares a similar cultural narrative achieving greatness, it tells them one vital thing: I can do it, too.
He continued, Beyond individual success stories, the event spotlighted the importance of collective effort. By connecting diverse stakeholders around the shared goal of education, we can amplify the message of the value and transformative power of STEAM careers. Students should recognize that these fields aren't just viable career paths; they're avenues to impact their families, communities, and even the world positively.
Boleslaw Wyslouch, professor of physics and director of the Laboratory for NuclearScience and the Bates Research andEngineeringCenter, provided introductory comments in a welcome at the beginning of the Friday session. He said, I was delighted that MIT and the Laboratory for Nuclear Science were able to help welcome Latino students from the Boston area, from around the country, and from abroad to the workshop. The combination of inspirational speakers, practical information, and visits to world-class MIT laboratories organized by Professor Ronald Garcia Ruiz was an excellent way to showcase the opportunities in science and engineering. I am very grateful to many outside organizations for sponsoring the students and their families to attend the event.
Professor Garcia Ruiz, who is a researcher in LNS and one of the organizers, emphasized, Disadvantaged youths, especially those from underserved communities, are disproportionately affected by the world's major challenges, including climate change, inequality, water scarcity, and food security, to name a few. However, these firsthand experiences also provide them with a unique perspective and motivation. When equipped with the right resources and education, these individuals do not merely thrive they lead.
By creating bonds between these talented young individuals, their families, committed educational foundations, global leaders from various fields, and visionary entrepreneurs and institutions, the event aimed to secure opportunities to empower them to become the innovators and transformative leaders of tomorrow. However, a stark reality persists. Often, even in the face of available opportunities, many of these young individuals do not take them either due to lack of awareness, the pressure of their communities, or fear of venturing into the unknown. We are hopeful that our initiative will help bridge this gap.
The wave of support from LNS, the MIT community, and from outside has been deeply heartening. The gratitude expressed by participants, especially by the students and their families, serves as our strongest motivation to continue with this mission.
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The power of representation and connectivity in STEM education - MIT News
October: Universal software for quantum | News and features – University of Bristol
For the first time, scientists researching in the field of quantum dynamics (QD) will be able to access, develop and deploy a universal software framework for simulations, removing many barriers that exist to achieving a deeper understanding and exploiting new phenomena across the quantum world.
Scientists use powerful sources of light to study tiny particles, atoms and molecules, that make up the matter around us known as the quantum domain. These experiments can be used to answer important questions about how the particles behave in chemical reactions, material properties, and new quantum technologies.
To understand the results of the experiments, computer simulations are crucial. The computer-generated virtual model shows how these tiny particles move according to the rules of quantum physics. Using the newly developed quantum simulations, researchers will predict and understand what is happening to molecules during experiments.
This is a new field of research, and most research groups use their own custom-made software for their studies. This individual approach means it is difficult for scientists to use ideas from one group to improve the methods of another group.
Now, a new research project called COSMOS, funded by the Engineering and Physical Sciences Research Council (ESPRC) and including researchers at the University of Bristol will develop a unified code for quantum dynamics simulations suitable for use by both computational and experimental researchers.
This universal software will enable a wider group of scientists worldwide to use computer simulations to explore the quantum world more efficiently, and it will aid researchers across a broad range of research areas to understand state-of-the art experiments and exploit quantum effects by designing new molecules and materials.
Professor Basile Curchod, Associate Professor in the School of Chemistry, said: For almost a century, chemists and physicists have been developing strategies to understand the behaviour of electrons in molecule using quantum mechanics. The exciting goal of COSMOS is to create a palette of theoretical and computational tools to describe an entire moleculewith quantum mechanics, accounting for the complex and coupled dynamics between electrons and nuclei! These tools are highly needed to understand and control processes of importance in solar energy, photosynthesis, atmospheric chemistry, and quantum technologies to name a few.
Lead researcher Professor Graham Worth, UCL, added: I am very excited to be heading this international team. The project will be a big challenge and I am looking forward to seeing how we can combine our knowledge and ideas to provide a step-change in the way we can describe, visualise and exploit quantum processes.
By supporting a large yet integrated cohort of early-career researchers, this programme grant will provide an enormous acceleration to developments in QD, positioning the UK as a global leader in this domain as we move from the era of classical computation and simulation into the quantum era of the coming decades.
Other Principal Investigators on the project are Dr. Basile Curchod (University of Bristol), Professor Adam Kirrander (University of Oxford), Professor Tom Penfold (Newcastle University) and Professor Dmitry Shalashilin (University of Leeds).
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October: Universal software for quantum | News and features - University of Bristol
SVVSD collaborating in Colorados Quantum Tech Hub initiative – Longmont Times-Call
As part of Colorados Quantum Tech Hub, a federal grant initiative, St. Vrain Valley Schools is joining a larger group developing middle and high school quantum technology curriculum.
The states quantum tech hub designation is expected to unlock federal investments, including new educational resources for St. Vrain students as the district integrates quantum technology into its classes. The district also will host an annual Elevate Quantum meeting at its Innovation Center in Longmont.
Altogether, more than 70 partners school districts, community colleges and universities, businesses, federal labs, and state and local governments are participating in the first phase of the initiative, according to St. Vrain officials.
It really is an amazing collaboration, said Joe McBreen, St. Vrains assistant superintendent of innovation. Im so excited to begin this work.
Colorado was designated as an official technology and innovation hub for the quantum industry earlier this month, opening up tens of millions of dollars in funding and elevating the regions profile as a leader in the field.
The state was chosen as a tech hub under the CHIPS and Science Act of 2022. The act makes $500 million available initially with $10 billion authorized for 20 regional hubs.
The Boulder-Denver area has been a center of research in quantum technology and a pipeline for companies for decades. Quantum computing is seen as taking computing to a new level by using the physics of quantum physics to solve more complex statistical problems faster.
The hub will focus on developing the use of quantum computing, quantum sensing, quantum networking and quantum hardware technologies and moving those applications from lab to market, according to officials. The technology can help speed up discoveries of drugs and sources of critical minerals, as well as enhance space-based navigation systems and observation satellites.
McBreen said he was most surprised to learn that its estimated that almost half of quantum jobs wont require advanced degrees. Along with research scientists, he said, the field will need machinists, solder technicians, welders and other similar technicians.
People in the business sector and the information technology sector are forecasting that the quantum informational ecosystem will be the next big thing in our economy, he said. Its an opportunity we get to participate in and actually lead.
Boulder Valley School District officials also see the potential for the quantum tech hub designation to increase opportunities for students. The designation comes as the district is expanding its career and technical education programs and work based learning options.
We are very excited to be able to include quantum technology education so our students can be part of this really exciting work, said Bianca Gallegos, Boulder Valleys executive director of strategic partnerships.
The district will use money from its $350 million capital construction bond issue to add space for more career and technical education classes at middle and high schools. The bond issue, which was approved by voters in November, also includes money for renovations at the Boulder Technical Education Center.
As the Boulder Technical Education Center community begins to discuss how it wants to expand existing programs and add new ones, quantum technology will be part of the discussion, said Arlie Huffman, Boulder Valley director of career and college connections.
He said the district wants to give students an opportunity to learn skills that will be needed to participate in the quantum industry through an advanced manufacturing pathway. Boulder High also is offering a computer science class that offers an introduction to quantum computing and whats needed to work on the computer science side of the industry.
We want to be one of the entry points to the quantum industry, Huffman said.
The Denver Post contributed to this report.
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SVVSD collaborating in Colorados Quantum Tech Hub initiative - Longmont Times-Call
What is reality? Well, just step right this way and meet Dr. Bobbs – Easy Reader
Strolling through the multiverse
Science thats stranger than fiction: a talk with physicist Bradley Bobbs
by Bondo Wyszpolski
Let me ask you this, whos your go-to man when youre in the mood to update your knowledge of lasers and electro-optics? Since Im only hearing crickets, let me point you in the right direction, and his name is Bradley Bobbs.
The Redondo Beach resident who works in Torrance at Intelligent Optical Systems, often gives lectures and presentations about that slippery topic called quantum physics, but heres the thing, he makes it understandable for those of us who havent realized that our grasp of the physical universe is largely riding on the back of quantum theory.
Bobbs has done the homework for us, and hes got the credentials a B.S. in physics from Harvey Mudd College and a Ph.D. in physics from UCLA. All we have to do is sit back and pay attention (see bottom of story for upcoming events). Heres how his lecture series began
The physics behind Star Wars
Fifteen years ago, Bobbs attended a lecture given by a friend of his and hosted by the Joseph Campbell Mythological RoundTable. Campbell, respected for his contributions as thinker and teacher, is perhaps best remembered as the author of The Hero with a Thousand Faces.
Bobbs began to attend these talks at the local Joseph Campbell Foundation on a regular basis. And then one evening, he says, as we polish off lunch at Black Angus, the topic focused on the mythology of Star Wars.
Someone asked a question about the multiverse, about multiple universes, and that launched a huge discussion: Everyone was very interested in this and talking about it although none of these people were physicists. And I started thinking, Wouldnt they be interested in hearing the physics behind the multiverse?
After a year of pondering how he could present such a subject, Bobbs cobbled together a lecture he calls Philosophical Mysteries of Quantum Physics, which he gave at the Joseph Campbell Foundation. One problem, though. The lecture was too long. But instead of being asked to cut it short, he was invited back twice so he could finish. Apparently his talks were a big hit, and Bobbs was invited back.
I was very encouraged by this, Bobbs continues. Of course it helped that I filled the lecture with all kinds of cartoons and jokes and anecdotes to make it entertaining, because these were not people who had come to learn physics, but to get [themselves] thinking and to be somewhat entertained.
So I looked up all the quantum mechanics jokes I could on the internet, and I interspersed them into the lecture at key points where I was talking about that subject. They were not just jokes, they were reinforcing the lesson and helping people to remember what I was teaching. Also, Id illustrate them and have little cartoons.
People found it very entertaining and they told me they learned a great deal, so I was very encouraged by this. Then I started getting invitations to give these lectures at other places.
Over time, his core lecture evolved. I kept adding to it, Bobbs says. People would make suggestions or ask questions, and I thought, Oh, there must be a way I can make this more clear. So the lectures gotten almost out of hand because its gotten so long. To get all the way through it, it takes like three-and-a-half hours. Which means it needs several intermissions.
But lets pause and ask ourselves, How did Bobbs get to this place? To answer that well have to go back to his childhood.
Sliced bread and T-squares
Where I really got started in science and technology was at the Helms Bakery, Bobbs says, whereas I might have guessed someplace like the Griffith Park Observatory. The building is still there on Venice Blvd; its not a bakery anymore, but back then that entire complex was an actual bakery. It was a big-scale production, with large quantities of baked goods. And then they had the Helms trucks that made deliveries all over the city.
Check this box [ ] if you remember that too.
At the time he was living with his family in Brentwood, which included an older brother and younger sister.
I was maybe in kindergarten, Bobbs continues, and my brother was in Cub Scouts, and they went on a field trip to the Helms Bakery and they said (the Scouts) could bring the rest of the family. And I was so fascinated by the technology involved in transporting, wrapping, and slicing the bread; it was all automated. Everything was on conveyor belts and rollers and it had robot arms that would come out and wrap the bread.
And I was just so entranced by this. I sat watching the machine that did the wrapping for so long. I just loved that. And I decided, Thats what I want to do. When I grow up I want to be someone who builds things like that.
Now the ball was rolling, aided and abetted by his parents who bought him Tinkertoys and Erector sets and similar kits that encouraged him to build little structures and simple machines. And then I got a chemistry set and a microscope and a telescope. In short, Bobbs says, I was hooked on science and technology.
When Bobbs was in fourth grade his father, who was a civil engineer who designed sewers and storm drains for the City of Los Angeles, taught him the fundamentals of drafting, the old way, of course, with a T-square, triangle, and protractor. I loved that, Bobbs says; and then Id go to his office and learn how to use the adding machine. This was the kind of adding machine with gears youd set the gears and pull the crank and I just loved all this stuff.
Later, when Bobbs went off to college he was thinking to pursue either physics or engineering, and physics won out: I like physics because its a little more esoteric, its more into research. But often theres not a big difference between the two.
After attending Harvey Mudd College in Claremont, Bobbs went to grad school at UCLA.
While still enrolled, Bobbs landed a part-time summer job at the Hughes Research Laboratories in Malibu (not far from Santa Monica where he was born). This is the place where the first laser was built, he says. In fact, I was working with a couple of guys who had built the very first laser in history. He was hoping theyd hire him after college, but the department hed been in was eliminated, so Bobbs headed over to Rocketdyne in Canoga Park, where exciting research on lasers was being done.
If youll recall, lasers and electro-optics is what Bobbs has specialized in.
Lasers is one example of electro-optical physics, combining electricity and optics. When asked for a modest definition of electro-optics for the general herd, Bobbs explains that Its basically high-tech optics. Its not just building telescopes and binoculars, its getting into digital cameras and fancy optical devices like lasers and things related to it.
I imagine theres a little bit more to it, but to continue
From Rocketdyne, Bobbs went to Zontec in Van Nuys and then to Optical Physics in Calabasas. In case youre thinking, Hey, this guy sure got shuttled around a lot, it should be noted that funding was often erratic. If a research company got a bit of cash theyd hire new talent. If the money vanished, so did the new hires.
From Optical Physics, Bobbs joined Physical Optics, the paired names good for a laugh: Optical Physics and Physical Optics are totally unrelated companies, with the latter located in Torrance. To cut this a bit short, Bobbs is currently employed with a spin-off company from Physical Optics thats called Intelligent Optical Systems. Again, he says, its high-tech optics, lasers, and optical sensors.
Its those experiences that gave Bobbs the knowledge he stuffs into his lectures. But knowledge in itself doesnt mean one has an aptitude for sharing it, and for public speaking. And so heres the missing piece:
I always enjoyed teaching, Bobbs says. At school he was a teaching assistant and later an Adjunct Professor of Physics at Moorpark College and California Lutheran University where his job required him to give presentations. There were also scientific conferences around the country where he was invited to speak to his colleagues.
I did a lot of that, he says, and I really prided myself on making my talks understandable. I had been to so many talks by other people where I just got lost and bored, and I didnt want to do that to other people. And, incidentally, my wife and I homeschooled our kids so Ive always enjoyed teaching.
In all the talks that I gave, even to other scientists, I would try to make a lot of it tutorial, Id try to start at the beginning and make sure everybody could follow what I was saying and then get to the more sophisticated stuff.
Bradley Bobbs giving one of his talks about lasers. Photo courtesy of Dr. Bobbs
I cover a variety of topics, Bobbs says, returning to the present, all the things that people find interesting. So I talk about wave-particle duality, which is sort of a key concept for quantum physics. And then of course Schrdingers cat. Everybodys heard of the cat by now, but I tell the whole history of how it came about, what it was trying to prove, the different views of it, and the philosophical questions it raises.
Bobbs is referring to the closed box with the cat inside. Is it alive or dead, or even both alive and dead?
When quantum physics was being developed, he says, it was making strange predictions that didnt make sense to anyone and yet (the theory) worked perfectly. It worked beautifully. Everybody agreed that the equations must be true, but when they tried to explain whats happening nobody could make sense of it.
Lots of scenarios emerged and were bandied about.
One school of thought, Bobbs continues, is called the Copenhagen interpretation, [which posits] that different possibilities that are mutually exclusive are both happening, and that when we observe it (or perhaps them), it collapses to one or the other. This is an offshoot of the well-known double slit experiment, where a beam of light is sent towards a partition (so to speak) with two exits. We know that it goes through only one slit or the other slit, Bobbs explains, and yet when we do experiments it shows that it must have gone through both slits.
And even though it may have gone through both, when a measurement is made it becomes one possibility or the other. Seemingly in contradiction to common sense. Which is to say that its the measurement or observation that determines what happens. And, yes, that turns our usual view of things upside down.
Now, other scientists like Einstein and Schrdinger said that this was totally ridiculous. Schrdinger then came up with the idea of the cat. In lieu of setting up a demonstration at the level of the subatomic world, he came up with an experiment where the cat is both alive and dead at the same time until you observe it. Then, when we open up the box to see what happened, suddenly the cat becomes either alive or dead, one or the other.
That, apparently, is the Copenhagen interpretation of quantum physics at work. One might think that Schrdinger made short order of their theory how can a cat be both alive and dead? but the Copenhagen folks werent about to throw in the towel.
They were saying, Bobbs continues, Well, yes, it is both alive and dead; wheres the problem? Well, we know the physics is true, it always works. But as far as what it means and whats actually going on, there are huge disagreements and many other interpretations.
What you see, what you dont
We are, of course, perceptually challenged because the human brain is wired to see things in a certain and limited way. It filters out all the noise which would make your head explode if the filter wasnt there.
We grew up in a world where we dont see one electron, we see billions of electrons, and its a very different world when you look at that, Bobbs says. The macroscopic world is very different from being in the microscopic world where youre the size of an electron. We interpret things according to our visual experience, which is very different from whats going on in the quantum world.
Furthermore, what we see isnt necessarily whats going on.
Dr. Bradley Bobbs, quantum physicist about town. Photo by Bondo Wyszpolski
When asked if he sees similarities between the incredibly large and the amazingly small, Bobbs says no, not really. I do talk a bit about cosmology, the big picture, space, but mostly Im talking about whats happening in the microscopic quantum world.
Hes also asked if theres a limit to how small things can get, that is, what if in the world of the atom there were atoms which contained other atoms and right down the elevator to infinity.
Theres a limit as to how small a size even makes sense, Bobbs replies. Theres the Heisenberg uncertainty principle, which limits how small a size has any meaning.
What about up there, endless space and time?
Thats looking at the big picture. Youre looking at how big is space. Thats very different from looking at how small space can be. Quantum physics really doesnt tell us anything about that thats in the realm of cosmology, looking at the big picture of the entire universe, and thats much more outside my field. My own research is related to quantum physics and not that much to cosmology.
Bobbs is asked if there are topics in the world of quantum physics that arent much talked about but which he feels are of special importance. He thinks over the question for a moment and offers up one response: antimatter.
A lot of people have heard about antimatter but they have no idea what it really is. The theory behind it is probably the most bizarre theory in all of science so thats another reason to talk about it because its so completely strange, and yet it was proven to be correct.
Antimatter and ordinary matter are the same, except that one has a negative charge and one a positive charge. To put a moral spin on it, theres the good twin and the evil twin, but they both eat at the same breakfast table.
Frog legs and Chico Marx
Bobbs had earlier mentioned the multiverse, a concept in which many universes exist all at once.
Therere actually multiple meanings for the multiverse, he says. In quantum physics its called the many worlds interpretation. But yes, anything that can happen, does happen. So that every time the universe has to make a decision is the photon going to go through this slit or the other slit the universe splits and the photon goes through one slit in one universe and the other slit in another universe. You can expand on that and realize that every time you try to decide Should I go to dinner or should I go out to the movies? the universe splits. In one universe you go to the movies and in the other universe you make dinner.
And then, in that spin-off universe, more decisions lead to additional spin-offs.
Bobbs admits its not an easy theory to wrap ones head around. But I explain the physics behind it and why these ideas came up. Its not really a series of separate lectures one about the multiverse and one about Schrdingers cat and one about antimatter it all ties together. Its just one big lecture series which makes it difficult to give because people usually dont want to sit through the whole thing at once. Often they do, but many people dont and then they miss parts of it; theyre not following the same train.
Sometimes, he adds, its all given in one day, a sort of marathon session with a few intermissions, and sometimes its given in a series in different weeks or even months.
Meanwhile, lets not forget that Bobbs has another topic that he often talks to the public about, and thats lasers.
Thats much more related to the actual research I do. I started with a lecture which is basically a collection of all the great laser stories Ive put together lasers that I worked on or heard about, just all the most interesting ones. Some of them are funny, some of them just amazing, and I illustrate them and explain them.
Naturally we want to hear one, and we want it to be succinct.
What comes to mind, Bobbs says after a few moments, is the frog legs laser. Theres a laser design in which the laser beams are zigzagging back and forth, and someone noted that the pattern that the beams make looks like frogs legs; so this has been dubbed the frog legs laser. So, cute little stories like that.
Are these lasers for medical or maybe military use?
All kinds of uses, Bobbs says. I dont talk too much about medical uses because I dont know much about that. But I put it all together and I call it Lasers I Have Loved. Then I thought I should also explain more about what a laser is and how it works, so I created another lecture thats like a prequel, and its called Why a Laser? Why-a No Light-a Bulb? a reference to Chico Marx.
We were waiting for a reference to the Marx Brothers, werent we? And from Chico its an easy jump to Edgar Allan Poe.
Can you hear the raven? Bradley Bobbs as Edgar Allan Poe. Photo courtesy of Dr. Bobbs
Ive got a costume and a wig and I dress up as Edgar Allan Poe.
Well, well. This seems to be on a different track from electro-optics, so lets rewind a little bit.
As a lighter complement to his serious lectures, Bobbs says, I started reciting poetry and then in some cases I embellished it with background stories. I do a few parody songs, silly stuff, much like childhood poems from Winnie the Pooh and Alice in Wonderland. Mostly lighthearted or comical, whimsical stuff. I dont write music, so I took someone elses melody and changed the lyrics.
Then I decided I wanted to start doing Edgar Allan Poe, which is not only serious stuff, its mostly dreary and depressing stuff. But I really love it. Bobbs doesnt just stand at the podium and read passages, he memorizes the work and acts it out. Its a passionate interpretation.
I started adding introductions and parodies and writing little comical bits, if you can imagine Edgar Allan Poe doing comedy. Then I expanded this into a 45-minute show, with quite a few other people providing music and song and dance. Presumably stopping a little short of a full-on Busby Berkeley production.
Bobbs has taken this act to such places as the Hollywood Fringe Festival and the Redondo Beach Main Library.
He mentions that he incorporates some sound effects.
Ahh, of course. The raven!
Well, that is done live. One of my colleagues, who is also a dancer and producer and clown for the show, performs the raven.
So I perform as if Im Poe, and part of it is Im just acting out his works, his poetry, and part of it is Im adding my own little stories, parodies, and kind of making fun of him or having him do comedy. I call the show Poe-Etic License.
One of Poes most famous stories is The Black Cat, in which a feline is accidentally walled up. Put in a box, so to speak. Even if it stops shrieking we wont know if its alive or dead. So, if Im in the audience and I ask: Mr. Poe, could you tell us about Schrdingers cat, that would put you into a whole different character, wouldnt it?
But apparently not. We dont take questions from the audience, Bobbs says. That ones all scripted.For that lecture, Im afraid, well have to travel to the multiverse.
Bradley Bobbs has a couple of lectures lined up, including Why a Laser? at noon on Oct. 31 at the Mary and Joseph Retreat Center in Rancho Palos Verdes. On Saturday, Jan. 6, hell present Why a Laser? and Lasers I Have Loved at the Redondo Beach Main Library. To learn more, contact Bradley Bobbs by emailing Dr.Bobbs@gmail.com. PEN
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What is reality? Well, just step right this way and meet Dr. Bobbs - Easy Reader
Energy Secretary says powerful SLAC laser could prevent the next … – The Stanford Daily
U.S. Secretary of Energy Jennifer Granholm visited the Stanford Linear Accelerator Center (SLAC) for the official launch of LCLS-II last Thursday. LCLS-II is a world-class laser with potential applications in nuclear fusion, medicine and sustainability research.
During her visit, Granholm went on a tour of lab facilities and spoke at the official launch event alongside a panel of SLAC and Department of Energy senior staffers. Granholm congratulated the staff at SLAC on this milestone and praised the collaborative nature of LCLS-II.
[I] cannot wait to see what truths you discover next in this grand exercise that brings humanity closer together, Granholm said.
Findings from the worlds most powerful X-ray laser according to SLACs press release are expected to aid in the development of clean fuels, energy research and quantum materials. Granholm said it would also allow scientists to design better catalysts for industrial processes and investigate the extreme conditions at which nuclear fusion occurs.
LCLS-II also has the potential to make large impacts on medical research, as the machine can elucidate 3D interactions between disease-related proteins with atomic-level detail. Through LCLS-II, it would be potentially possible to prevent the next pandemic by observing how drugs interact with pathogens at the smallest molecular level, Granholm said.
Building a new research tool this powerful does not come cheap. Its the culmination of a billion dollars and more than a decade, said lab director John Sarrao.
During her tour of the facility, Granholm visited the control room, experimental hall, cooling plant and one of the cryomodules. The cryomodules are one of the key differentiating factors between LCLS-II and its predecessor, the Linac Coherent Light Source (LCLS-I).
LCLS-I first debuted to the world in April 2009, generating X-ray pulses a billion times brighter than anything that had come before. Using the machine, scientists from around the world have been able to watch chemical reactions as they happen, observe how electrons move through materials and replicate the behavior of atoms in stars.
Continuing this tradition, LCLS-II creates unparalleled capabilities that will usher in a new era in research, according to SLACs press release. LCLS-II, uses superconductors to push the number of X-ray pulses per second up from LCLS-1s 120 to a million. LCLS-II can also produce a near-continuous beam of x-rays up to 10,000 times brighter than LCLS-I.
In LCLS-I, electrons are sent at very high speeds down a room-temperature copper pipe; in LCLS-II, the copper is replaced by a superconductor, which needs to be cooled down to near absolute zero to function properly. The cryomodules, designed and built by Fermilab and Jefferson National Laboratory, are what cool the revolutionary new accelerator down to temperatures colder than outer space, according to Asmeret Asefaw Berhe, director of the Office of Science at the Department of Energy.
Both LCLS-I and LCLS-II will run in parallel with one another, expanding on the capabilities of the original machine. One of the Department of Energys goals for the project is to aid in the battle against climate change.
California has such bold goals on meeting on climate change. And this facility is where it all starts making sure we get it right at the start to be able to meet those big goals, Granholm said.
The day before her visit to SLAC, Granholm kicked off her quarterly Secretary of Energy Advisory Board meeting in San Francisco to discuss President Bidens Investing in America agenda for massive clean energy investments.
Today is really a victory for theory, Granholm said during a celebratory speech. With an X-ray source that is 10,000 times brighter than anything before, weve expanded the possibility of quantum physics. Scientists from around the world are and will flock to this facility to test the ideas they only dreamed of pursuing.
America is now home to the worlds most powerful subatomic camera, Granholm said.
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Energy Secretary says powerful SLAC laser could prevent the next ... - The Stanford Daily
Research Fellow (Energetics of Quantum Measurement),Centre For … – Times Higher Education
About the Centre for Quantum Technologies
The Centre for Quantum Technologies (CQT) is a research centre of excellence in Singapore. It brings together physicists, computer scientists and engineers to do basic research on quantum physics and to build devices based on quantum phenomena. Experts in this new discipline of quantum technologies are applying their discoveries in computing, communications, and sensing.
CQT is hosted by the National University of Singapore and also has staff at Nanyang Technological University. With some 180 researchers and students, it offers a friendly and international work environment.
Learn more about CQT atwww.quantumlah.org
Job Description
We are searching for motivated and talented post-docs interested in the fundamental resource cost of quantum measurement and related advantages of quantum nature. The post-doc will join the Quantum Energy Team QET@Singapore led by A. Auffves.
Quantum measurement lies at the crossroad between quantum foundations and quantum technologies. One the one hand, the measurement problem has irrigated all debates about the meaning and completeness of quantum theory - On the other, measurements are key processes in quantum technologies, as they bring results at the (macroscopic) level of the end user. The present project aims to analyze the resource cost of quantum measurement and how it relates to information extraction at the quantum and classical levels. We will optimize the resulting measurement energy efficiency, with special interest in possible advantages when quantum resources are exploited to perform the measurements [1], the fact that quantum measurement can behave as an energetic resource in quantum engines [2,3], and in the intimate relation between energy cost and reversibility. The post-doc will develop theoretical concepts and models, interact with a wide network of top level experimentalists, and supervise PhD students.
Website of the Quantum Energy Team|QET>https://quantum-energy-team.cnrs.fr
Website of the quantum energy initiativehttps://quantum-energy-initiative.org
Job Requirements
More Information
For enquiries and details about the position, please contactAUFFEVES Alexia atalexia.auffeves@cnrs.fr.
Please include your consent by filling in the NUS Personal Data Consent for Job Applicants.
Employment Type: Full-time
Applications can be submitted via the link below and should contain: the latest CV, and letter of recommendation (if any).
Department: [[Centre For Quantum Technologies]]Job requisition ID: [[18794]]
Covid-19 Message
At NUS, the health and safety of our staff and students are one of our utmost priorities, and COVID-vaccination supports our commitment to ensure the safety of our community and to make NUS as safe and welcoming as possible. Many of our roles require a significant amount of physical interactions with students/staff/public members. Even for job roles that may be performed remotely, there will be instances where on-campus presence is required.
Taking into consideration the health and well-being of our staff and students and to better protect everyone in the campus, applicants are strongly encouraged to have themselves fully COVID-19 vaccinated to secure successful employment with NUS.
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Research Fellow (Energetics of Quantum Measurement),Centre For ... - Times Higher Education
Physics at Imperial College London: What it’s like to be part of a … – Study International News
Be part of a diverse community of pioneers, creators and innovators at the UKs third-ranked university for physics and astronomy. Join Physics at Imperial College London today.
As one of the largest physics departments division in the UK with an outstanding reputation for excellence in research, the Department of Physics at Imperial College London is where youll be able to find answers to some of the biggest questions of our universe and reality. Indeed, the department offers more than education, unlocking a world of inquiry to its students and inviting more to step into the forefront of scientific exploration.
Italian-French student Stella found just that here. Always seeking to understand the complexities of the universe, it was an obvious choice for her to join a department that was home to several Nobel Prize in Physics winners. Cutting-edge research and distinguished scientists aside, Stella was also drawn to the idea of specialising in theoretical physics while also delving into fields like philosophy and political philosophy.
The Physics with Theoretical Physics MSci programme aligned with her goals perfectly.The professionally accredited degree, which includes an integrated year of masters level study, lets Stella tailor her studies to suit her interests and aspirations across a range of optional modules. After building an excellent grounding in a range of physics, mathematics and experimental methods, the programme gives students the opportunity to specialise across a variety of topics including cosmology, laser technology and quantum physics.
Those nervous about beginning a rigorous course at a world-leading university can take comfort in knowing it didnt take long for Stella to feel at home, within and beyond campus.
To me, London is not a city of the world, but rather, the world in a city! she enthuses. Furthermore, the Imperial community is incredibly diverse, international and open. Hence, whoever you are, where you come from and whatever drives you, you will find your place! I certainly did.
Immersed and engaged at the seventh most international university in the world, the student was able to whole-heartedly work toward developing the skills and knowledge needed to pursue her dream career in research. The department was no passive observer in this pursuit. It encourages all students to be active members of its research community. Stella seized the opportunity to explore the cosmos through the Undergraduate Research Opportunities Programme, focusing on cosmology and astrophysics within a theory group. Another project is already on the horizon.
Getting hands-on experience doing research and learning from like-minded researchers and professors in your field of interest is a great asset when it comes to kick-starting a career in research, she says.
For graduate Sofa a, her Imperial journey was just as horizon-broadening. Through the International Research Opportunities Programme, she had the chance to spend a summer in China exploring 5G at Tsinghua University. It opened my eyes to see that I didnt have to stay in Europe I could explore other places in the future and see how things are done differently, she says. It was an extremely positive experience.
Such opportunities make it all the easier for MSci students to get a better understanding of the areas of focus that matter the most to them. Many dive deeper into these topics during their fourth-year research project. For example, Kantaphat Pinaree further explored the exoplanet by investigating the atmospheric composition of the hot gas giant WASP-69b. Anthea MacIntosh-LaRocque focused on building a detector to map a proton beams dose profile and ultimately fight cancer with physics. Nadia Cooper looked into the interplay between gravity, quantum theory, and extreme conditions, focusing on the behaviour of charged black holes.
The BSc Physics provides access to state-of-the-art laboratories and top-of-the-line research resources, too. This three-year programme which can be followed up with a one-year postgraduate MSc course is a better fit for students looking to lay a solid foundation by developing the numerical, logical thinking and problem-solving skills required to impress the employers of both today and tomorrow.
All programmes are delivered from the heart of London, the global academic capital. Regardless of their background, everyone discovers something special in this multicultural, vibrant city. For StellaCloz, studying in the heart of South Kensington, a stones throw away from the serenity of Hyde Park and close iconic landmarks and museums, has been nothing short of a blessing. Its artistic and musical scenes, always lively, youthful, and intriguing, have never failed to energise her.
Be careful, though, she says. Once you leave London, you will find yourself missing and longing to come back.
Follow Imperial College London on Facebook, Instagram, X, YouTube, and LinkedIn
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Physics at Imperial College London: What it's like to be part of a ... - Study International News
Revisiting Oppenheimer and science: Its not a priesthood – Mountaintimes
By David Moats
David Moats, an author and journalist who lives in Salisbury, is a regular columnist for VTDigger. He is editorial page editor emeritus of the Rutland Herald, where he won the 2001 Pulitzer Prize for a series of editorials on Vermonts civil union law.
At a time when facts, science, and the very idea of objective truth are under assault from many quarters, its ironic that one of the big movies of the season has focused on the life of one of the most celebrated scientists of the 20th century.
That irony is not lost on Rich Wolfson, who from 1976 to 2019 was a professor of physics at Middlebury College. Wolfson appreciated that the science presented in the movie Oppenheimer was largely accurate and also that physics, his field, took center stage in the movie.
The story of J. Robert Oppenheimer deserves to be remembered. The movie is based on the book American Prometheus: The Triumph and Tragedy of J. Robert Oppenheimer by Kai Bird and Michael Sherman.
Oppenheimers most noted triumph was his success as director of the Manhattan Project during World War II, leading the effort to build the first nuclear atomic bomb. But it was a triumph that haunted him for the rest of his life because he could not look away from the fact that he had helped to create weapons capable of destroying all of humanity.
Then in 1954 his reputation came under the shadow of McCarthyite paranoia when the government revoked his security clearance after a campaign of character assassination had raised specious questions about his patriotism.
The Oppenheimer story resonates with Rich Wolfson in part because Wolfsons work as a physicist has led him to try to shed light on the benefits and dangers of nuclear technology. He is the author of a book called Nuclear Choices for the Twenty-First Century: A Citizens Guide, written with co-author Ferenc Dalnoki-Veress. It is a primer on various useful and/or dangerous forms of nuclear technology, including nuclear medicine, nuclear power generation and waste, and nuclear weapons. The book is meant to provide a basic understanding of the questions confronting the public in these complex areas of public policy.
Oppenheimers work as a scientist placed him in that elite priesthood of physicists developing an understanding of quantum theory and the mysterious properties of the atom. Wolfson has labored over the years to make the baffling realities of modern physics accessible to those beyond that priesthood to the nonscientific lay public.
Toward that end he is the author also of a widely used physics text and of a book called Simply Einstein, which seeks to explain Einsteins theory of relativity in a way that is comprehensible to the nonscientist. And he has produced a series of 24 half-hour video lectures explaining Einsteins theory of relativity and quantum theory to a nonscientist audience. (They are available on YouTube fromThe Great Courses.)
Both the book and the videos require close attention, but they succeed in showing that Einsteins theory was based on common-sense, if counterintuitive, observations that make sense when carefully explained.
Oppenheimer was conscious of the fact that science existed within a broader culture and was, in fact, an important force in shaping modern culture. This was evident in a lecture he delivered in 1965 a lecture, it turns out, where I happened to be in the audience.
I had a vague memory that Oppenheimer had delivered an address at the University of California at Santa Barbara when I was there. I remembered little about it and wasnt sure it had actually occurred. I could find no mention of the event online, but the public affairs office at UCSB managed to track down a tape of the speech in the university library. At my request, the library forwarded to me an audio file of the speech, which Oppenheimer had delivered for the university convocation of October 1965.
At his home in Middlebury, Wolfson and I listened to Oppenheimer at the lectern in California 58 years ago. It was a learned, thoughtful speech, ranging over the history of science from ancient Greece to Isaac Newton to Darwin and up to that day in 1965, with fleeting reference to the ultimate danger represented by nuclear weapons.
It was so learned that Wolfson wondered if a contemporary audience could sit still for it, or if after five minutes they would be fidgeting with their phones. In 1965, Oppenheimer earned enthusiastic and prolonged applause.
Before science became a force in human culture, Oppenheimer suggested, culture mainly served to stop change, to defend what he called the eternal verities. But after Galileo, Newton and the scientific advances that followed, science became an agent of change that was irreversible. What brought about the scientific revolution, Oppenheimer said, was an idea of progress and the idea that the betterment of mans condition has meaning.
Science grows out of common sense, curiosity, observation, and reflection, Oppenheimer said. It was an immense job to teach the complex lessons of science, but he said that science was not merely a quantitative endeavor. It involves a quest for harmony, elegance, and beauty, he said. We hunger for nobility.
If a belief in objective truth has come under siege in contemporary America, Oppenheimer had a rejoinder in his understanding of the laws of physics. He said that if alien beings were studying physics on a distant planet, they might not find the same answers as humans have found, but that would be because they were asking different questions. If they were asking the same questions, they would get the same answers. The laws of physics pertain everywhere.
After hearing Oppenheimers 1965 lecture, Wolfson said that science need not be a priesthood. It is still tied to everyday experience, he said. A huge portion of everyday experience can be explained by Newtonian science.
That science is woven into the fabric of society is evident everywhere from the science that developed the computers on which this story is appearing, to the vaccines that have kept millions of people alive, not just through Covid, but through epidemics as varied as smallpox, measles and polio.
Wolfson quoted a former senator from Oklahoma, James Inhofe, who asserted that his opinion was as good as any science. It turns out that in the face of recent climate-related disasters, Inhofes opinions about climate change have proven to be irrelevant, except insofar as they have retarded action addressing the crisis. The laws of physics do not concern themselves with the opinions of an Oklahoman with a political agenda.
In fact, the inconvenient truths of climate change have been before us for decades. We look away at our peril.
Thus, Wolfsons focus in recent years has shifted away from the nuclear danger to the reality of climate change. It is an apt topic for a physicist.
Climate is all about energy, he said.
On that topic, as on others, Oppenheimer had good advice 58 years ago. We need to reknit the discourse and understanding between us, he said. We have to learn to talk to one another. And we have to hear.
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Revisiting Oppenheimer and science: Its not a priesthood - Mountaintimes
Quantum Computers Explained. The Quantum Leap … – Medium
Quantum computers
Quantum technology
What on earth is a quantum computer?
Bits! Qubits!
Try all the codes at once!
Whichever nation first develops a practical quantum computer will have a tremendous advantage
Quantum Supremacy
The world is abuzz with talk of quantum computers, but the information can be muddled and confusing, and sometimes downright incorrect.
Quantum computers arent simply super-sized versions of our current computers; theyre something entirely different, and that difference is the key to understanding their monumental significance.
Imagine stepping into a world where computers are no longer bound by the limitations of classical computing, where machines can solve complex problems that were once thought impossible, and where the very fabric of reality is harnessed to transform technology as we know it. Welcome to the world of quantum computing, a realm that is set to revolutionize not only the way we compute but also how we understand the universe itself.
Bits! Qubits! If these words sound like gibberish to you, fear not; youre not alone. Quantum computers, often touted as the future of computing, are shrouded in an enigmatic aura. Lets demystify them.
At first glance, a quantum computer might appear much like your ordinary computer. Quantum computers, often misunderstood as just bigger, faster versions of classical computers, are, in fact, something entirely different.
However, beneath its unassuming exterior lies a complex web of qubits, the building blocks of quantum computation.
They operate on the principles of quantum physics, featuring qubits as their building blocks. Unlike classical bits, which can only represent 0 or 1, qubits exist in a superposition of states, a feature that forms the core of quantum computings incredible power. Its like juggling multiple balls at once, with each ball representing a different possibility.
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