What is so compelling about the geometry involving this larger symmetry group is that it explains why you get two copies of something with 16 particles but also that the third generation is something of an imposter. The problem has been for decades that naively, one has to tune it small, not that it is there in the first place. Joseph Conlon, de la Universidad de Oxford, comentó que algunas de estas partículas ya deberían haberse visto en aceleradores como el Gran Colisionador de Hadrones, si existieran. , En mayo de 2013, Weinstein pronunció una conferencia, Unidad geométrica, que Marcus du Sautoy consideró como una posible respuesta a algunos de los problemas de la física moderna. In May 2013, Weinstein gave a colloquium talk, Geometric Unity, promoted by Marcus du Sautoy as a potential unified theory of physics. The Field Equations control the curvature of space-time and represent our theory of gravity, whereas the Yang-Mills and Dirac equations represent our theory of particle interactions on a quantum level. When Marcus du Sautoy gets the Oxford String Theory Group renamed as the Oxford Geometric Unity Group, despite Weinstein’s ideas not working out, then I’ll add them to the list to denounce. If I am not mistaken, in an effective field theory approach of SM + Einstein-Hilbert, the cosmological constant appears automatically as a counterterm. Considering that there are 12 Gauge bosons, 14 sounds a wee bit low then… Well, we’ll see, or not. Update: See Jennifer Ouellette for a critical take on the Guardian coverage.  El término es una referencia semi-irónica a un grupo de académicos e incluye también a intelectuales que se han dado a conocer a través de sus podcasts. Very little in the universe is arbitrary. He spoke at the invitation of Marcus du Sautoy, an Oxford mathematician who now inhabits Richard Dawkins' former position as the Simonyi Professor of the Public Understanding of Science. It may be null, but it probably isn’t, and no one discusses it in standard textbooks because, except in the vicinity of Planck energy, it’s so minuscule that it’s not experimentally verifiable. They should not have gone public until they had checked their cables. In fact, nobody except Eric Weinstein and mathematician Marcus du Sautoy are sufficiently familiar with the claims to venture an opinion. , Weinstein acuñó el término "intelectual dark web" después de que su hermano, Bret Weinstein, renunciara a su puesto en The Evergreen State College tras un altercado en el campus. The theory sounds like a large extrapolation on the SM though. However, without a paper or predictions, it’s hard to say much of anything, good or bad. When it was later discovered that in fact the universe was expanding he removed the term and dubbed it "the biggest blunder of my life". Weinstein's theory does this by revealing the presence of a new geometric structure involving a much larger symmetry at work, inside which the symmetry of the Standard Model sits. The effect of spin is likely small quite generally, from dimensional arguments. And then later of course it was a cable problem. The way the paragraph is phrased sounds to me like du Sautoy does not really know the stuff. Not only that, it also predicts a slew of new particles that we can start looking for in our colliders. The physicist Isadore Rabi famously quipped on hearing about the muon: "who ordered that?" At the moment, I don’t remember what the second one was, but I’d agree that spin’s effect on geometry is a necessary problem to be solved by a complete unification. At high energies it will actually behave differently to the other two. Another term that was added retrospectively to the Standard Model is the Higgs field. Hi Peter, I’m a teeny bit surprised at your reaction – isn’t this exactly the sort of hype you are usually so critical of? And contrary to what people have thought, it is not constant. On Thursday in Oxford he will begin to outline his ideas to the rest of the mathematics and physics community. Yes, he really needs to get a paper written so others can see what he has, but it’s not because he’s trying to get attention that he hasn’t done that yet. Right now, I just don’t see the problem of Weinstein getting too much attention for his ideas as a major one for physics. The particles corresponding to this bit of the symmetry-breaking might account for a piece that has an impact on gravity but mathematically can't interact with the other fields, such as electromagnetism, making it "dark". Lots of people have been denouncing du Sautoy for not inviting physicists to the talk, when it turns out he did. The mathematics explains why it should work the way it does. As far as I know, the Guardian blog posts were not his idea. The particles described by the Standard Model – the stuff of nature that is revealed in accelerators such as the Large Hadron Collider – fall into three "generations". One of the things that particularly appeals to me about the theory is that symmetry, my own field of research, is a key ingredient. The beautiful thing for me is that Weinstein's symmetry group doesn't just appear out of nowhere. But until a specific model is proposed, even the magnitude of the effect remains unclear. 4 Pocos físicos asistieron a esta conferencia y las conclusiones fueron recibidas con escepticismo por varios comentaristas. He has spent the past two years taking me through the ins and outs of his theory and that initial feeling that I was looking at "the answer" has not waned. This is just a (time thirsty) hobby.”. Our current theory of gravity predicts that there is a lot more matter in the universe than the stuff we can see. This hidden matter has been dubbed dark matter because none of the other forces of nature seem to interact with it. When Einstein produced his Field Equations it was believed that the universe was stationary – neither expanding nor contracting. To make his equations work he arbitrarily had to stick in an extra term called the cosmological constant to ensure the universe stood still. Eric has finally gotten to the point where he is willing to talk about these ideas publicly, and he is giving a lecture today in Oxford, something that was arranged by Marcus du Sautoy. But they didn’t know that.”. The geometry around the symmetry group that Weinstein is proposing also gives us an explanation of another of the big mysteries of physics: what dark matter is and why we can't see it. Su teoría inédita incluye un espacio "observador" de 14 dimensiones y predicciones de partículas no descubiertas que, según él, podrían explicar la materia oscura . But this cosmological constant has always seemed very arbitrary and a retrospective fix.” Su familia es judía, y es hermano del biólogo Bret Weinstein.. Without the Higgs mechanism, certain particles in the model would be massless. Do Particle Physicists Continue to Make Empty Promises. For a small amount of info about the talk, see the comment here from “Leaker”. Weinstein's theory answers this in spades. Se graduó en la Universidad de Pensilvania en 1985 y se doctoró en física matemática en el Departamento de Matemáticas de la Universidad de Harvard en 1992. Pingback: The Overhyping of Theories and the Search for Scientific Truth | Anacephalaeosis, #FísicaCuántica: El “todólogo” Eric R. Weinstein y quien alto sube, duro cae | Francis (th)E mule Science's News, A Tale of Two Oxford Talks | Not Even Wrong, Around the Web: Cool linky stuff for science undergrads (5) – Confessions of a Science Librarian, Geometric Unity reprise | betaingegneria.it, » Social construction of truth and knowledge (inlustre monumentum est), Courses, Forces, and (w)Einstein | Of Particular Significance, The Overhyping of Theories and the Search for Scientific Truth | Anacephalaeosis. Anyway, that story doesn’t really have much to do with this one. But Weinstein's symmetry is predicting that we will see new particles with spin 3/2 exhibiting familiar responses to the nongravitational forces together with a slew of new exotic particles with familiar spin but unfamiliar responses to the forces of the standard model. We are in a relatively flat piece of the universe, which explains why the cosmological constant is so small. He seriously believes in what he is doing, has been working on it completely quietly for many years, and is deeply conflicted about discussing his ideas in public. But for me what is so appealing about Weinstein's ideas is the naturalness of the story, the way things aren't arbitrarily inserted to make the theory fit the data but instead emerge as a necessary part of the mathematics. In structures like those, the factor of G may not always lie between the physical and the geometric, that’s all. What he was about to show me, he explained, were ideas that he'd been working on for the past two decades. Svrluga, Susan; Heim, Joe (1 de junio de 2017). with details such as its bundle structure (base manifold and fibre), Another reason for not writing more about this is that I don’t know much about what is going on, which seems to be a good time to wait a bit before commenting more. It seems like he is more interesting in getting attention than in contributing to science. I think Weinstein probably deserves a fair hearing and open minds. If this isn't a description of how our universe works then frankly I'd prefer to move to the universe where it does! Beyond that, Eric is the one who needs to get details of this out, not me, since I’m still in the dark…. But then rather bizarrely in the second generation we have another version of these particles which look exactly the same but are heavier than the first generation. Yes, that’s indeed strange. I know Eric pretty well, and he’s not doing this to get attention, get on TV, get a book deal, etc. I think Eric’s tweet from May 29 is instructive: “You’ll get an article whenever I’ve time to finish one & only because I really want to give you one. Beaulieu, Laurent; Kanno, Hiroaki; Singer, I. M. (1998). The Guardian has a long article about him and his work here. It was an extremely exciting, daring proposal, but also mathematically so natural that one could not but feel that it smelled right. Those who missed it the first time need only wait 2 more days — for it seems Weinstein is giving a re-run this Friday at 2pm in the Mathematical Institute in Oxford. As regards the du Sautoy article, I think it’s an editorial. Perhaps you have seen something something we don’t… Theory is needed to tell you where to look. “One proposal for the source of this push involves reintroducing the cosmological constant into Einstein’s Field Equations. Einstein talked about his belief that the universe was made of marble not wood. Weinstein's ideas run counter to this trend and are more in line with Einstein's belief in the power of mathematical geometry.
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