Physics Nobel Prize 2012

I had decided to retire from the Nobel Prize prediction business at the top of my game after my first prediction soon after this blog was started. I haven’t heard anything about what tomorrow’s announcement will be, but did just notice something that gave me pause, this quote in a Cosmos magazine article:

“There’s nothing stopping us from giving the prize to an organisation. But it has not been the custom in the scientific prizes,” said Lars Bergstroem, secretary of the committee for the Nobel physics prize.

“The Nobel Peace Prize has often been awarded to organisations. But in the science prizes we have tried to find the most prize-worthy individuals.”

If there really is nothing but custom to keep them from awarding the Nobel this year to ATLAS, CMS, and CERN for the Higgs, I can’t see a better occasion to break with the custom, and they’ve had a long time to decide whether or not to do this. So, here’s a (probably wrong…) prediction for tomorrow: ATLAS, CMS and CERN as Nobelists.

Update
: As predicted, that prediction was wrong: the prize went to Haroche and Wineland for work manipulating individual quantum states. Maybe next year for the Higgs…

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Physics Frontiers Prize

Yuri Milner’s Fundamental Physics Prize Foundation announced today the process by which future winners of the $3 million Fundamental Physics Prize will be chosen (for more about this, see here), a process which involves setting up yet another prize, the Physics Frontiers Prize. The idea is that by the end of the year, the Selection Committee of previous prize winners will pick three winners of the new Physics Frontiers Prize, and these will be the candidates for the 2013 $3 million Fundamental Physics Prize. One of the three will get the $3 million, the other two will get $300,000 and automatically renominated for the $3 million prize each year over the next 5 years. So, I guess you might not want to win immediately, since if you get passed over the first time, you might end up with $3.3 million instead of $3 million.

There’s also a separate $100,000 New Horizons in Physics Prize “targeted at promising junior researchers”. Nominations for these two categories of prizes can be made by going to the Fundamental Physics Prize website.

The press release quotes Nima Arkani-Hamed, member of the Selection Committee as:

This is a tremendous opportunity to recognize the highest levels of achievement in fundamental physics. We look forward to receiving nominations for outstanding candidates ranging across all areas of the field.

Arkani-Hamed is in India, where an interview with him appeared today (hat-tip an e-mail from him to Lubos Motl), with comments about the Milner prizes:

I really think it’s a fantastic thing for Physics—to have a showcase every year where scientists get to talk about the exciting aspects of the subject. I don’t think any physicist or scientists are motivated to research by the thought of a prize or the money involved in it. But, it definitely helps in creating awareness among the youngsters, and encourages more people to take up the subject.

the Higgs:

There are people trying to figure out the indirect effects between the different Higgs like particles. These are very difficult experiments and will take another 20 years before any confirmation is reached.

the future of particle physics:

What’s going on in particle physics is not just the evolution of the standard model but the rise of a new branch of physics that can solve some of the age old problems. Super symmetry is a very good example of what this physics should look like. For the first time we will have some evidence that there’s actually really fine adjustments of the parameters of fundamental physics hardwired into the way nature works. This will be very shocking for many people and teach us something profound.

and string theory:

In late 1990s one of the most important theoretical discoveries was that string theory and particle physics are not different but different descriptions of the same thing. All the good viable ideas people have had in the past 40 years are now branched together to seek the truth.

Update: Haaretz reports that Witten “said he would probably donate part of the $3 million he won in a surprise award to J Street, the liberal pro-Israel group.”

Please note that any attempts to pursue, from either side, the Arab-Israeli conflict on my blog’s comment section will be immediately deleted.

Update: Just realized that the Witten/J Street news is rather old, from shortly after the announcement of the original prizes. I didn’t hear about it at the time, curious if there’s other news about what plans the prize winner have for their winnings.

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Wide World of Links

Some short items of a wide variety of kinds:

  • Witten has posted to the arXiv a long paper about the work on superstring perturbation theory that he has been doing. Superstring Perturbation Theory Revisited, together with two papers of background material (see here and here) weighs in at 400 pages. For an explanation of the main points, you might want to start with one of Witten’s recent talks on the subject, for instance this one at Strings 2012.
    Witten doesn’t make much in the way of claims for the significance of this work, portraying it more as a project of going through the foundations of the subject of how you define higher loop superstring amplitudes in a much more careful way than was common during the mid-late 80s when this was a hot topic of research. The technicalities here are ferocious, well beyond my expertise. It will be interesting to see if this project revives interest in the subject and others start working on it again.
  • Also on the arXiv is a new paper from Paul Frampton, with affiliation now including the Centro Universitario Devoto, part of the prison where he is unfortunately still incarcerated in Argentina. He argues here that he is still able to fulfill his duties as a University of North Carolina professor from Devoto prison, but doesn’t seem to have gotten the university to agree about this.
  • There’s a conference at DESY this week on Lessons from the first phase of the LHC, with talks on Friday discussing “Where could SUSY be hiding?” and “Searches for new physics at the LHC: some frustration, but no despair…”. For some additional context to the SUSY issue, I recently ran across this talk from SUSY 02, 10 years ago, which argued that SUSY arguments implied that “superpartners are probably being produced” at a new collider that had been running for a year or two (the Tevatron Run II at that time).
  • The SCOAP3 consortium has announced a plan to support commercial journals publishing HEP papers, paying them 1000-2000$ per HEP paper they publish according to a complicated formula. Elsevier would get about $2.4 million/year for papers in Physics Letters B and Nuclear Physics B, but somehow reduce its subscription fees to compensate. I don’t understand at all how this is supposed to work (obvious problems include that of why anyone would subscribe once it was all open access, and what the mechanism is to stop publishers from increasing revenues by publishing more second-rate papers). Nature has an article explaining more about what is going on here. Steven Harnad describes the scheme as Unnecessary, Unscalable and Unsustainable, Peter Coles as “Particle physics volunteers to be fleeced…”
  • String theory advertising available here, Sean Carroll commentary about this here.
  • At Foundations of Physics, Gerard ’t Hooft has a new paper which doesn’t seem to be on the arXiv, On the Foundations of Superstring Theory (you may need a subscription to read it). Here’s the abstract:

    Superstring theory is an extension of conventional quantum field theory that allows for stringlike and branelike material objects besides pointlike particles. The basic foundations on which the theory is built are amazingly shaky, and, equally amazingly, it seems to be this lack of solid foundations to which the theory owes its strength. We emphasize that such a situation is legitimate only in the development phases of a new doctrine. Eventually, a more solidly founded structure must be sought.
    Although it is advertised as a “candidate theory of quantum gravity”, we claim that string theory may not be exactly that. Rather, just like quantum field theory itself, it is a general mathematical framework for a class of theories. Its major flaw could be that it still embraces a Copenhagen view on the relation between quantum mechanics and reality, while any “theory of everything”, that is, a theory for the entire cosmos, should do better than that.

    There’s a recent blog posting about this here, including commentary from ’t Hooft himself.

  • If you’re trying to keep up on reaction to Mochizuki’s claimed proof of the ABC conjecture, try looking here. Still I think a very long ways to go before experts understand this well enough to evaluate whether this is a solid proof.
  • I recently heard from Nick Carlin, who has unearthed the following scientific documents: Strange Particle Interactions in a Bubble Chamber and The Angular Correlation of Polarization of Annihilation Radiation, from late 1977 or spring 1978. Handwritten commentary is from William J. Skocpol and Robert V. Pound.

Update: Some frustration, but no despair is now on-line. The first slide is pretty amusing…

Update: More news about the latest in Paul Frampton’s case here.

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PPAP Community Meeting

Following up on last week’s European Strategy Group Meeting in Krakow, this week UK particle physicists are doing something similar, with a Particle Physics Advisory Panel community meeting in Birmingham.

The talks on the experimental side tell much the same story as the Krakow talks. On the theory side, the UK meeting has more, with a phenomenology talk which discusses prospects for “Saving SUSY” while noting that:

It’s ironic that the solution to the absence of SUSY is to add even more stuff: composite 3rd generation or Higgs, R-parity violating couplings, scalar gluons, or new singlets.

There’s extensive discussion of UK particle theory funding here. I don’t understand very well how particle theory is funded in the UK, but was interested to note that the slide on page 5 has string theory’s piece of the pie stable at 27% last year (also 27% in 2008, 28% in 2005). Mike Duff (see commentary here) wrote a piece for the forthcoming 40 Years of String Theory volume arguing that the 2006 books by Lee Smolin and me were responsible for destroying funding of string theory in the UK, but the numbers in this new talk don’t seem to bear this out. I gather there’s a separate story about the EPSRC and mathematical physics, and curious to hear from anyone who knows more about that. But if the state of affairs is that the mathematical end of string theory is being defunded while the phenomenological end is going strong, that can’t be because someone in authority read my book…


Update
: The US has its own version of this planned to take place over the next year, Snowmass 2013, starting with a meeting next month at Fermilab. It looks like this will be purely about planning on the experimental side, with the problems of particle theory not on the agenda.

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European Strategy Group Meeting

CERN has a new version of the European Strategy Group (last convened in 2005/6), tasked with updating medium to long-term plans for future accelerators and particle physics in general. This week they’re running an Open Symposium (live webcast here), with presentations covering a wide array of topics from the state of speculative ideas about BSM physics to possible new accelerator technologies.

While the presentations themselves often focus on the really interesting question of how to learn more about the Higgs and electroweak symmetry breaking, media articles based on reporting from the conference have started to appear, often featuring the usual nonsense. See for example this piece, from the Sunday Times, which tells us that:

Such a machine might help resolve some of the questions raised by Albert Einstein, who could not reconcile the forces operating at the level of atoms with the force of gravity, which governs the movement of stars and planets.

which then gets picked up by the Daily Mail and turned into a story about how CERN reveals plans for new experiments measuring 50 miles in length to solve the mystery of how gravity works, which explains:

The collider will be used to solve a new batch of mysteries of the universe, such as how gravity interacts on a molecular level.

Maybe the European Strategy Group could as part of its deliberations develop a strategy for stopping physicists from going to the press with nonsense about quantum gravity….

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Langlands and Twistors?

I just heard about this from George Sparling, who is giving a talk this afternoon with the title “From Roger Penrose to Robert Langlands and back” at a symposium in Pittsburgh. I don’t at all know what this is about, but am posting this quickly because he tells me there may be a live stream of his talk at 5pm today, available at

http://live.twistor.org

Evidently yesterday and today at Pittsburgh there’s a symposium on “Towards the Unification of Mathematics and Physics”, with the following schedule:

4pm Wednesday: Mellon Professor Thomas Hales, “The present status of the Langlands Conjecture”.
5pm Wednesday: Jonathan Holland, “Parabolic geometry”.

4pm Thursday: Tim Adamo, University of Oxford, “Twistor-String theory and gravity”
5pm Thursday: George Sparling, “From Roger Penrose to Robert Langlands and back.”

Last week there was a workshop at Banff on The Geometry of Scattering Amplitudes, with videos now available. I’ll try soon to take a look at some of them, Sparling’s may give an idea of what he is up to.

And, for something completely different, see this interview with Edward Frenkel about the Langlands Program at the Fields Institute blog for this fall’s Fields Medal symposium.

Update: There’s a video of the Sparling talk available here.

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This Week’s Hype

BBC Horizon this week is running an episode How Small is the Universe? with a description that features the usual sort of hype about modern physics:

It is a journey where things don’t just become smaller but also a whole lot weirder. Scientists hope to catch a glimpse of miniature black holes, multiple dimensions and even parallel Universes. As they start to explore this wonderland, where nothing is quite what it seems, they may have to rewrite the fundamental laws of time and space.

Access to the video is restricted to IPs in the UK, so I can’t watch the thing, and should avoid being too critical. One of the two clips though advertises The landscape of String Theory and somehow I doubt that the clip explains why this is pseudo-science. Associated with the show is this article by Andy Parker of ATLAS, which gives the idea that ATLAS is looking for strings:

Strings can vibrate, and this allows us to explain all of the strange fundamental particles which we see as different vibrations of the strings – different notes from a cosmic violin.

So far, so simple – but to explain the particles we know about, the strings have to vibrate in lots of different ways.

Superstring Theory allows them to vibrate in a bizarre space with 11 dimensions – up, down, sideways, “crossways” and 7 other ways!

Experiments at the LHC are looking for evidence that you can move “crossways”. If we can, there could be whole universes, as big and marvellous as our own, sitting just down the road “crossways”.

No mention is made of the fact that the LHC has seen zero evidence for any such thing, or that few if any physicists ever thought there was any real chance it would.

The other experiment invoked is the MAGIC gamma ray telescope, presumably in the context of the search for Lorentz-violating dispersion of gamma rays from gamma ray bursters. This was discussed in an edition of This Week’s Hype from five year’s ago, which featured a Slashdot report that Gamma Ray Anomaly Could Test String Theory. At Scientific American, the story was Hints of a breakdown of relativity theory?, which was about this paper, and contained the news:

Another co-author, string theorist Dimitri Nanopoulos of Texas A&M, writes to me: “I am very excited about this, because as you know we suggested this effect about ten years ago and we have follow through with several analyses and/or improvement on theory. Notice that the 0.4 x 1018 GeV is the typical string scale!!!!”

Since 2007 there have been a series of much more sensitive results from Fermi ruling out the quantum gravity interpretation of the MAGIC observations (see e.g. here, here, here and here.)

Since I can’t watch the video, I don’t know what the BBC has to say about MAGIC’s results, in particular whether the show explains the story of the 2007 claims and how they were later shown not to have anything to do with space-time structure by the newer Fermi observations.

Update: I did just get a chance to watch the program. It was very well made, with the first half quite interesting, featuring the LHC and some atomic-physics scale experiments I would have loved to hear more about. About half-way through though, it started to go off the rails, with the usual kinds of problems. The extra dimensions at the LHC stuff made no mention of the fact that even string theorists see no good reason for them to show up at this scale, and the results to date confirm this. The Mike Green segment was pretty much pure string theory/multiverse hype. Reference to the “mind-boggling predictions” of string theory misses the main problem, that there are no predictions. In particular, no predictions about the gamma-ray dispersion MAGIC is looking for, which ended the show. The 5 second discrepancy described at the end in MAGIC 2005 observations I suspect has been shown to not be plausibly due to such dispersion by later Fermi results which went unmentioned.

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Proof of the abc Conjecture?

Jordan Ellenberg at Quomodocumque reports here on a potential breakthrough in number theory, a claimed proof of the abc conjecture by Shin Mochizuki. More than five years ago I wrote a posting with the same title, reporting on a talk by Lucien Szpiro claiming a proof of this conjecture (the proof soon was found to have a flaw). One change over the last five years is that now there are excellent Wikipedia articles about mathematically important questions like this conjecture, so you should consult the Wikipedia article for more details on the mathematics of the conjecture. To get some idea of the significance of this, that article quotes my colleague and next-door office neighbor Dorian Goldfeld describing the conjecture as “the most important unsolved problem in Diophantine analysis”, i.e. for a very significant part of number theory.

Jordan is an expert of this kind of thing, and he has some of the best mathematicians in the world (Terry Tao, Brian Conrad and Noam Elkies) commenting, so his blog is the place to get the best possible idea of what is going on here. After consulting a couple experts, it looks like this is a very interesting and possibly earth-shattering moment for this field of mathematics. In the case of the Szpiro proof, the techniques he was using were relatively straightforward and well-understood, so experts very quickly could read through his proof and identify places there might be a problem. This is a very different situation. What Mochizuki is claiming is that he has a new set of techniques, which he calls “inter-universal geometry”, generalizing the foundations of algebraic geometry in terms of schemes first envisioned by Grothendieck. In essence, he has created a new world of mathematical objects, and now claims that he understands them well enough to work with them consistently and show that their properties imply the abc conjecture.

What experts tell me is that, very much unlike the case of Szpiro’s proof, here it may take a very long time to see if this is really a proof. They can’t just rely on their familiarity with the usual scheme-theoretic world, but need to invest some serious time and effort into becoming familiar with Mochizuki’s new world. Only then can they hope to see how his proof is supposed to work, and be able to check carefully that a proof is really there, not just a mirage. It’s important to realize that this is being taken seriously because such experts have a high opinion of Mochizuki and his past work. If someone unknown were to write a similar paper, claiming to have solved one of the major open questions in mathematics, with an invention of a strange-sounding new world of mathematical objects, few if any experts would think it worth their time to figure out exactly what was going on, figuring instead this had to be a fantasy. Even with Mochizuki’s high reputation, few were willing in the past to try and understand what he was doing, but the abc conjecture proof will now provide a major motivation.

Mochizuki has been at this for quite a while. See this page for some notes from him about how he has been pursuing this project in recent years. This page has notes from lectures he has given on the topic, starting in 2004 with A Brief Introduction to Inter-universal Geometry. For the proof itself, see here, but this is the fourth in a sequence of papers, so one probably needs to understand parts of the other three too.

Update: Barry Mazur has recently made available his 1995 expository article on the abc conjecture, entitled Questions about Number.

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Fall Course: Quantum Mechanics for Mathematicians

This fall I’m teaching on quantum mechanics for mathematicians, at the undergraduate level. There’s a web-page with more information here. I’ll be writing up lecture notes, which should appear on that web-page as the course goes on, starting Wednesday.

We’ll see how this works, but the plan is to teach many of the standard topics, although starting from a different point. Most quantum mechanics classes start out with classical mechanics, then somehow try and motivate quantum mechanics from there, following the historical logic of the subject. I’ll instead start with the simplest purely quantum systems, especially the two-state, spin-1/2 system, now famous as the “qubit” of quantum computation. This is also a central example for the theory of Lie groups, Lie algebras and representations, so something that every mathematician should become familiar with. Another advantage of starting here is that there’s no analysis, just linear algebra, and one can easily do everything rigorously.

Later on in the course I’ll get to the standard material about wave-functions and quantum particles in potentials. The emphasis will be though not on the analytical machinery needed as a rigorous foundation for this subject in general, but on specific problems and their symmetries, and the use of these symmetries to do real calculations, ending up with the spectrum of the hydrogen atom.

We’ll see how this goes, and what the students think of it. As lecture notes appear, corrections and suggestions of how to improve them would be appreciated.

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The Templeton Effect

The Chronicle of Higher Education has a long story about the Templeton Foundation, entitled The Templeton Effect. Much of it is about various subfields of philosphy where Templeton money has been successful at bringing religion, theological concerns and religious philosophers to greater prominence. One section however describes the Templeton funding promoting a new field of Philosophy of Cosmology. Religion doesn’t explicitly appear here, but the story of how this “Philosophy of Cosmology” got underway gives a good example of how money influences intellectual pursuits:

Barry Loewer, a philosopher at Rutgers University at New Brunswick, isn’t likely to turn up at a Society of Christian Philosophers meeting with Newlands and Miller. “I myself have no interest in philosophy of religion and am not a religious person,” he says. For years, Loewer has been working with a group of philosophers, mathematicians, and physicists in the New York area, meeting and collaborating on papers—nothing very expensive. But about five years ago a colleague at Rutgers, Dean W. Zimmerman, told the group about the Templeton Foundation and suggested that they apply for a grant. Zimmerman, a top Christian philosopher, had already served on Templeton’s advisory board and participated in many foundation-sponsored activities.

The idea at first was to do a project about quantum mechanics and the foundations of physics, which was an interest of Loewer’s group. Templeton had other ideas. The foundation pointed the group in the direction of cosmology, with the prospect of a much bigger grant, and the researchers jumped at the idea. They realized that cosmology encompassed the questions of time and physical laws that had concerned them all along.

“You know that story of Molière’s where someone discovers that he has been speaking prose his whole life?” says Loewer. “It was a little bit like that.”

The nearly $1-million grant his team received from Templeton last year coincided with another, slightly larger one called “Establishing the Philosophy of Cosmology,” which was awarded to scholars at the University of Oxford. Despite the change of plans at Templeton’s behest, Loewer stresses, “They’ve been really helpful, and totally noncoercive in terms of any agenda that they might have. I had my eyes open for it.”

Not that philosophers are especially well practiced in negotiating the terms of million-dollar grants, much less in thinking about how such money might sway them. Neither Loewer nor Mele nor Miller nor Newlands could have anticipated back when they were in graduate school that they’d be administering projects like this; their training was for armchairs, libraries, and conferences. But now that the money is coming into the field, it is being welcomed even by those who lack the foundation’s spiritual proclivities. “Templeton picks some people whose Christian epistemology I might not share,” Brian Leiter says, “but there’s no quarreling that they’re serious philosophers.” Suspicions about some secret religious agenda tend to lessen the more widely the foundation’s substantial sums begin to spread.

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