All Questions
18
questions
5
votes
1
answer
230
views
Why and how we study different limits in quantum gravity?
While I'm reading an article, I get confused by why and how we study different limits in quantum limit.
In this paper, the author introduced four limits in D0-brane quantum mechanics: the DKPS (...
- 368
2
votes
1
answer
104
views
What are Bubbling Geometries?
I know that Wilson loops in certain higher rank representations are dual to Bubbling Geometries. Also, certain local operators are dual to this kind of solutions. But (independently from holography), ...
3
votes
0
answers
58
views
Integrating out the 5th dimension in AdS/CFT
My main understanding of AdS/CFT is through the idea that the partition functions on the boundary and bulk are equivalent when expressed in terms of source fields $J_0$. On the boundary $J_0$ is a ...
- 8,815
3
votes
1
answer
107
views
How I can get the numerical factor in the relation between string coupling and YM coupling?
I'm trying to understand some references about Wilson loops being used to test AdS/CFT. Some of them are
Nadav Drukker, David J. Gross: An Exact Prediction of N=4 SUSYM Theory for String Theory
...
2
votes
0
answers
119
views
Is Randall-Sundrum model background independent?
Randall-Sundrum model (https://en.wikipedia.org/wiki/Randall%E2%80%93Sundrum_model) is related on string theory.
String theory can be background independent (https://en.wikipedia.org/wiki/...
user235953
4
votes
2
answers
477
views
Very basic question on AdS/CFT
I was going through the introductory material by Horatiu in Ads-CFT.
It says that $N+1$ D-branes are split into $N$ D-Branes and a probe D-Brane. The Wilson loop is located on the probe D-brane, which ...
- 1,023
2
votes
1
answer
348
views
CFT with noncompact target space => no well-defined vacuum state?
In Maldacena & Nunez's paper, on page 6, when they discuss the compactification of Type-IIB on $\textbf{R}^6 \times K3$ (with D3 branes wrapped on $\textbf{R}^{1,1} \times \Sigma$ where $\Sigma$ ...
- 2,095
3
votes
0
answers
78
views
Rotating Branes and AdS/CFT
Do we have an extension of the AdS/CFT correspondence for rotating branes?
Are the rotating branes, the supergravity analog of the Kerr Black Holes in General Relativity?
What are the most ...
- 153
1
vote
0
answers
119
views
Supersymmetries of the type IIB D3-brane action
The following query is based on a reading of section 2.2 of a paper by Graña and Polchinski. The idea is to begin with the D3 brane action of the form
$$ ds^2 = Z^{-1/2}\eta_{\mu\nu}dx^\mu dx^\nu + Z^...
- 2,095
6
votes
1
answer
3k
views
From String Frame to Einstein Frame for 10D supergravity
This question is related to but not answered in the post String frame and Einstein frame for a Dp-brane, so it should be treated as a separate question.
Beginning with the gravity action
$$S = \frac{...
- 2,095
2
votes
1
answer
996
views
Curvature of Weyl-rescaled metric from curvature of original metric
I'm trying to go from the low-energy effective action in the string-frame to the corresponding action in the Einstein frame. The action in the string frame has the form
$$S = \frac{1}{(2\pi)^7 l_s^8}\...
- 2,095
3
votes
1
answer
444
views
What does it mean the term "probe brane"?
What does it exactly mean the term "probe brane"?
People say for example: We put a stack of N branes at some point and then a probe brane ..."
How do they appear in AdS/CFT?
Can you give me an ...
- 2,188
0
votes
1
answer
67
views
Materials on charged black brane
Does anyone know some good materials on charged black branes in AdS/CFT and the role of chemical potential in theses cases?
7
votes
1
answer
460
views
Questions on D branes and their role in the AdS/CFT correspondence
I'm a beginner in learning the AdS/CFT correspondence, and I come across two problems that I hope an answer will be given here.
D branes in string theory are usually introduced through the T-duality ...
- 151
5
votes
1
answer
165
views
AdS/CFT dual of $N$ D$p$-branes at finite temperature
The gravity dual of $N$ D$p$-branes at zero temperature is
$$ ds^2= H^{-1/2}(r)(-dt^2+dx_p^2) + H^{1/2}(r)(dr^2 + r^2d\Omega_{8-p}^2) $$
with
$$ H(r) = 1 + \left(\frac{R}{r}\right)^{7-p} $$
what ...
- 1,117