All Questions
29
questions
2
votes
3
answers
58
views
What is the dual asymptotic spacetime of a CFT on a particular flat manifold?
According to AdS/CFT correspondence, the dual theory of a boundary CFT on flat spacetime is defined on an asymptotically AdS spacetime. The nature of the bulk spacetime depends on the topology of the ...
- 785
1
vote
2
answers
109
views
Why $N\to \infty$ limit implies $g_s \to 0$ in holographic QCD?
One basic difficulty in QCD is that it does not contain a small dimensionless quantity that would allow for perturbative calculation of low-energy observables.
A remarkable feature of holographic ...
- 227
0
votes
0
answers
34
views
How is every D-brane dual to 2 others?
For instance, A D3 brane is T dual to both a D2 and D4. I understand the idea that Type A and B theories are T dual to one another, but I don't understand how you get 2 different dual descriptions ...
- 47
4
votes
1
answer
162
views
Why are we able to compare the open and closed string perspective in AdS/CFT?
I am reading the book Gauge/Gravity Duality Foundations and Applications by M. Ammon and J. Erdmenger. In that book they state the relationship between parameters on both sides of the duality as
$$
g_{...
- 87
1
vote
1
answer
140
views
AdS-CFT correspondance from 1D to 4D
From what I understand the AdS-CFT correspondence states that the bulk dynamics of a $n$-dimensional gravitational theory are encoded in the degrees of freedom of its dual CFT in the $(n-1)$ ...
- 153
7
votes
1
answer
470
views
Isn't AdS/CFT an end to String theory as a fundamental theory?
I start with the Large $N$ QCD paper by 't Hooft.
When 't Hooft published his paper on Large $N$ QCD it was clear why the string theory of hadrons due to Gabriele Veneziano could make sense. But at ...
- 1,268
2
votes
0
answers
68
views
How can holographic duals (eg. AdS/CFT) be used to study magnetic monopoles? [closed]
What useful things are possible to find out about magnetic monopoles through the use of dual theories? I'm thinking of characteristics such as stability (or chaoticness), expectation values, central ...
- 79
0
votes
0
answers
136
views
Action in AdS/CFT correspondence
I am a beginner trying to study AdS/CFT correspondence.
Could someone please explain, can we connect action in the gravity side to the field theory side by this correspondence? Can we write the ...
- 186
5
votes
1
answer
208
views
The planar limit, self-duality and their relation to two dimensions
In the lecture notes by Beisert on integrability, it is stated that integrability is a property mainly in two-dimensional field theories, with some higher-dimensional examples. As higher-dimensional ...
user172341
2
votes
0
answers
37
views
Interpretation of two independet solutions of equations of motion in AdS/CFT
I am trying to understand the statement in AdS/CFT correspondence, that from the two independent solutions of equations of motion in the bulk, one corresponds to the source of operator $\mathcal{O} (x)...
- 4,883
3
votes
1
answer
347
views
Bulk/boundary duality for matter fields?
Usually, in gauge/gravity duality we have some CFT on a boundary that is dual to a gravity in the bulk. Although CFT is never written in Lagrangian form, it seems for me, that AdS/CFT correspondence ...
- 186
4
votes
1
answer
126
views
Duality between gravitation and $O(N)$ model
Does there exist any gravity dual theory for theory with $N$-component scalar field with $(\phi^2)^2$ interaction?
- 2,664
1
vote
0
answers
53
views
Different duality-correlations in holographic principle?
I found an interesting article "Surface/State Correspondence as a Generalized Holography" (https://arxiv.org/abs/1503.03542)
If I understood it well, the authors proposed this model to generalize the ...
user235953
1
vote
1
answer
239
views
Is the gauge/gravity (or AdS/CFT) duality believed to be exact?
I was wondering about the implications of the gauge/gravity (or AdS/CFT in a more restrictive sense) duality for the way we deal with physical theories, and I was wondering if the duality was believed ...
- 1,723
4
votes
1
answer
886
views
What is really this Gauge-Gravity duality all about?
I have no background in string theory but have a reasonable exposure to quantum field theory including the quantization of gauge theories. In simple terms what is this Gauge-Gravity duality all about ...
- 26.8k