Princeton physicists connect string theory with established physics

Princeton U ^ | May 1, 2007 | Chad Boutin

[SunkenCiv]

String theory, simultaneously one of the most promising and controversial ideas in modern physics, may be more capable of helping probe the inner workings of subatomic particles than was previously thought... [T]he Princeton researchers have found new mathematical evidence that some of string theory's predictions mesh closely with those of a well-respected body of physics called "gauge theory," which has been demonstrated to underlie the interactions among quarks and gluons, the vanishingly small objects that combine to form protons, neutrons and other, more exotic subatomic particles. The discovery, say the physicists, could open up a host of uses for string theory in attacking practical physics problems... The team's paper appears in the March 30 issue of the scientific journal Physical Review Letters. Klebanov's co-authors include graduate student Marcus Benna and postdoctoral fellows Sergio Benvenuti and Antonello Scardicchio... String theory, for all its mathematical beauty, once again seemed too difficult to test -- until Niklas Beisert, an assistant professor of physics at Princeton, published a paper in late October of last year containing an equation that turned out to be a crucial piece of the puzzle... Klebanov, while noting many other scientists' contributions, credits Beisert for "providing the techniques and writing down this fantastic equation," and said that his own team's findings were possible largely due to the Beisert team's paper.

[SunkenCiv]

A Test of the AdS/CFT Correspondence Using High-Spin Operators M. K. Benna, S. Benvenuti, I. R. Klebanov, A. Scardicchio Abstract: In two remarkable recent papers the planar perturbative expansion was proposed for the universal function of the coupling appearing in the dimensions of high-spin operators of the [script N]=4 super Yang-Mills theory. We study numerically the integral equation derived by Beisert, Eden, and Staudacher, which resums the perturbative series. In a confirmation of the anti–de Sitter-space/conformal-field-theory (AdS/CFT) correspondence, we find a smooth function whose two leading terms at strong coupling match the results obtained for the semiclassical folded string spinning in AdS5. We also make a numerical prediction for the third term in the strong coupling series.

[SunkenCiv]

[SunkenCiv]

Intercourse these stupid high-ASCII substitutes for perfectly usable and recognized characters, and all who use them. Thank you.

A Test of the AdS/CFT Correspondence Using High-Spin Operators M. K. Benna, S. Benvenuti, I. R. Klebanov, A. Scardicchio Abstract: In two remarkable recent papers the planar perturbative expansion was proposed for the universal function of the coupling appearing in the dimensions of high-spin operators of the [script N]=4 super Yang-Mills theory. We study numerically the integral equation derived by Beisert, Eden, and Staudacher, which resums the perturbative series. In a confirmation of the anti-de Sitter-space/conformal-field-theory (AdS/CFT) correspondence, we find a smooth function whose two leading terms at strong coupling match the results obtained for the semiclassical folded string spinning in AdS5. We also make a numerical prediction for the third term in the strong coupling series.

[bajabaja]

So this means we can test hypotheses based on ST in the lab? To this non-physics guy, ST always seemed like a religion if you couldn’t generate if/then hypotheses. Heck, what do I know anyway.

[RightWhale]

Use of numerical methods is use of computers, the very same computers that are spewing Global Warming. The world is not digital, and this might not be popular among those whose careers lie in numerical physics, but the world is not mathematical.

[SunkenCiv]

a reprise:

Poll: the Pythagorean says, "all is number", I say...

1. How many finger am I holding up?
2. What about letters?
3. Must have been a big number that you smoked.
4. What's the number for 9-1-1?
5. Other (please specify)

[theFIRMbss]

[SunkenCiv]

see the keyword for more; look for topics on the Large Hadron Collider. I used to have hadron trouble, but used an ointment and they went away.

Physicists Develop Test for String Theory
Space Daily | Jan 25, 2007 | Staff Writers
Posted on 01/25/2007 12:01:26 PM EST by Ben Mugged
http://www.freerepublic.com/focus/f-news/1773567/posts

String Theory’s Extra Dimensions Must Be Less Than Half the Width of a Human Hair
Scientific American | January 16, 2007 | JR Minkel
Posted on 01/17/2007 1:06:00 AM EST by SunkenCiv
http://www.freerepublic.com/focus/f-chat/1768742/posts

[theFIRMbss]

Big Bang at the atomic lab after scientists get their maths wrong

[SunkenCiv]

Whoops. But hey, what’s $2 billion anyway?

Big Bang at the atomic lab after scientists get their maths wrong
Times Online | 4/8/07 | Jonathan Leake
Posted on 04/08/2007 11:55:49 AM EDT by LibWhacker
http://www.freerepublic.com/focus/f-news/1814013/posts

[theFIRMbss]

>Whoops. But hey, what’s $2 billion anyway?

If we consider
a dollar as a tiny
perfect sphere, then by

watching them impact
each other at very high
values, we can see

what they're made of, and
ultimately we can learn
what everything is!