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4
votes
1answer
170 views
About Holographic Model of Magnetism and Superconductor
I have a question about this paper http://arxiv.org/abs/1003.0010
In their model,
when consider holographic paramagnetic-ferromagnetic phase transition,
they need Yang-Mills field itself to ...
5
votes
0answers
148 views
Why Brown York stress tensor == dual field theory's energy momentum tensor?
From the AdS/CFT dictionary, how to argue that the Brown York stress tensor for a gravity
system near the boundary is exactly the same as the energy momentum tensor of the dual field theory?
In the ...
5
votes
1answer
354 views
Turbulence parameterization from gravity - fluid dynamics correspondence
I`m looking for a nice introductary reference that explains how the turbulence coefficient or any kind of turbulence parameterization (in view of applications to atmospheric turbulence for example) ...
3
votes
1answer
104 views
Supergroup action on $AdS_5XS^5$
In the context of the AdS/CFT correspondence I was trying to understand how the symmetry group of the underlying space $AdS_5 X S^5$ comes out to be the supergroup $SU(2,2|4)$. I can see how the ...
1
vote
2answers
156 views
$2+1$ dimensional physics theory of our universe?
Is there any physics theory that depicts our universe as $2+1$ dimensional?
I heard that black holes seem to suggest that the world might be $2+1$ dimensional, so I am curious whether such theory ...
2
votes
1answer
51 views
What's the potential of the LHC's heavy ion experiment?
RHIC has been the dominant player in heavy ion physics, producing tantalizing evidence in support of the entropy/viscocity formula from AdS/CFT.
What's the potential of the LHC's Pb ion collsions? ...
5
votes
2answers
591 views
Recommendations for time-line and road map in graduate school towards specializing in Maldacena's conjecture
This question was asked on Theoretical Physics Stackexchange and was grossly misread and closed.
I am again posting the question here hoping to get some valuable insights.
Also some people were ...
3
votes
0answers
78 views
Can quark-gluon plasma ever be close to an ideal gas of asymptotically free quarks?
The question inspired by an upcoming colloquim at UCB.
A naive interpretation of quark asymptotic freedom seems to imply that at high enough energies they should be weakly interacting. On the other ...
1
vote
1answer
326 views
Charges and Topology
I must apologize, I was a little bit excited when I began understanding some of this, I can not say I can compete with professionals, and words are still difficult concepts.
In (1) S.H. et al. it is ...
1
vote
0answers
70 views
Choice and identification of vacuums in AdS/CFT [duplicate]
Possible Duplicate:
Choice and identification of vacuums in AdS/CFT
I think I know how do we define a vacuum in flat space QFT and also in a curved space QFT. But, can somebody tell me how ...
2
votes
0answers
338 views
Correlators at large N and large N factorization
I am having this very basic problem. In e.g Maldacena's AdS/CFT review (0309246) (page 5), he has defined operators as $\mathcal{O}=N\,{\rm tr}[f(M)]$ for some matrices $M$ and got the connected ...
11
votes
2answers
817 views
Vasiliev gravity and “holographic” entanglement
It has been proposed that AdS/CFT arises because of the entanglement structure of quantum field theories, e.g. see the discussion which occurred right here. Until now I have been skeptical of the ...
5
votes
0answers
580 views
Why is the AdS/CFT approach to superconductors rarely cited in condensed matter publications?
Let me put things into perspective by comparing with other applications of string theory. Nowadays review papers written by cosmologists about inflation models often discuss string theory scenarios ...
5
votes
1answer
436 views
Viscosity/Entropy ratio and unitary evolution in quantum gravity
Calculations of the shear viscosity of the quark-gluon plasma (QGP), observed in heavy ions collisions, are performed via the AdS/CFT correspondence [ref1]. One finds that the shear viscosity of the ...
2
votes
1answer
236 views
Can the geodesic propagators in the Euclidean BTZ black hole can be written in terms of meromorphic functions on its conformal boundary?
I'm interested in knowing if ,in the context of AdS_{3}/CFT_{2}, we can (and how to) express the geodesic propagators on the bulk space of the Euclidean AdS_{3} black holes, in terms of meromorphic ...
4
votes
2answers
231 views
Can the study of the quantum information structure in QFT with holographic duals be relevant to string theory?
I'm interested in characterizing the behaviour of measures of quantum information in strongly correlated quantum field theories which admit a gravity dual description, e.g through AdS/CFT duality. In ...
5
votes
1answer
503 views
Scale dependence of energy dissipation in viscous flow via AdS/CFT
The famous AdS/CFT calculation of the shear viscosity/entropy ratio for strongly coupled $N=4$ SYM relates the shear viscosity to the absorption cross section for fluctuations of the metric onto a ...
10
votes
2answers
607 views
Treatment of boundary terms when applying the variational principle
One of the main sources of subtlety in the AdS/CFT correspondence is the role played by boundary terms in the action. For example, for a scalar field in AdS there is range of masses just above the ...
10
votes
3answers
1k views
Mathematics of AdS/CFT
To date, what is the most mathematically precise formulation of the AdS/CFT correspondence, and what are the most robust tests of the conjecture?
11
votes
3answers
846 views
Condensed matter application of AdS/CFT
I'm going to be teaching a course on gauge/gravity duality (aka AdS/CFT) in the winter.
The focus will be on applications in particle theory including $N=4$ SYM, the viscosity/entropy bound, and ...
