All Questions
Tagged with ads-cft quantum-gravity
57
questions
2
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0
answers
24
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BTZ black hole as a quotient of AdS space
I am trying to understand this paper 1 and trying to reproduce some calculations and had some questions about that. In section 3.2, page 12, eq. 3.9, the authors are writing normal geodesics of an ...
- 63
1
vote
1
answer
52
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How do hyperbolic tessellations like {7,3} in Anti de-Sitter space relate to our intuition of 3D space (or 4D structure if you include time)?
I just ran into the AdS/CFT correspondence, as I am looking at various use-cases of hyperbolic tessellations, specifically related to the pentagrid and heptagrid as defined by Maurice Margenstern in ...
- 2,200
3
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51
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Replica wormholes in $AdS_5 \times S^5$ holography
I have a question about replica wormholes and the CFT ensembles in AdS/CFT. To make sure that my question isn't coming from a simple misunderstanding, I'll first sketch out my current understanding on ...
- 1,014
5
votes
1
answer
230
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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
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115
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Gravity dual of the string world-sheet CFT?
The AdS/CFT correspondence conjectures a duality between a $(D+1)$ dimensional gravity theory in asymptotic AdS spacetime with a $D$ dimensional conformal field theory. Is there any sense in asking ...
- 125
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37
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Unitarity in the 't Hooft limit
Consider a quantum gauge theory with a holographic dual at infinite $N$ and 't Hooft coupling, in which the gauge theory is described by classical (super)gravity.
If I initialize the system in a pure ...
- 169
1
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0
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64
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Reparameterization invariance in gravity
It's often said that gravity/general relativity has 'reparameterization invariance.' In particular, this comes up when people talk about the duality between the Sachdev-Ye-Kitaev (SYK) model and ...
- 2,504
1
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1
answer
71
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Reverse AdS/CFT correspondence?
$\text{AdS}_{n}/\text{CFT}_{n-1}$ correspondence provides a dictionary for one-to-one mapping observables in bulk gravity to boundary conformal field theories. However, does the reverse correspondence ...
user375448
1
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0
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41
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Holographic derivation of correlations functions in $\text{AdS}_3$/$\text{CFT}_2$
Intro
I am interested in finding the correlations functions $\langle A^{a_1}_z(z_1) \cdots A^{a_k}_z(z_k) \rangle$ in the frame of $\text{AdS}_3$/$\text{CFT}_2$ correspondance for 3D gravity and two ...
- 2,613
2
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0
answers
76
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Research progress in the symmetries of flat space holography
I was studying the papers
[$1$] Arjun Bagchi. The BMS/GCA correspondence
[$2$] Duval, C., Gibbons, G. W., & Horvathy, P. A. (2014). Conformal carroll groups. Journal of Physics A: Mathematical ...
4
votes
1
answer
253
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Jackiw-Teitelboim (JT) gravity as a matrix integral
I am reading https://arxiv.org/abs/1903.11115 by Saad, Shenker and Stanford. They relate an (averaged) $n$-point function in a random double-scaled matrix model to a path integral genus expansion in ...
- 165
4
votes
1
answer
350
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What is the symmetry group of asymptotically AdS spacetime?
The isometry group of global $AdS_{d+1}$ is well-known to be $SO(d,2)$. I have a suspicion that when the spacetime is asymptotically AdS, with dynamical gravity in the bulk, the symmetry group gets ...
- 1,455
6
votes
0
answers
232
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Operator insertions vs boundary conditions in AdS/CFT
This question is motivated by AdS/CFT, but really it's just about AdS quantum gravity. Consider quantum gravity in asymptotically AdS spacetime. For simplicity, assume there are no matter fields: the ...
- 1,455
4
votes
1
answer
569
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Is the Quantum Gravity mystery already solved by Susskind? [closed]
Very recently, Leonard Susskind presented a lecture presenting his proposal of Quantum Mechanics = Gravity (equality means duality).
Quantum Origins of Gravity
Is this really the end of Quantum ...
- 1,268
2
votes
1
answer
288
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Boundary conditions for bulk partition function in AdS/CFT
In AdS/CFT, we are told that the bulk and boundary functions are equal:
$$ \tag{1}Z_{bulk}[J]= Z_{CFT}[J], $$
where on the left hand side of the equality, $J$ is interpreted as a boundary condition at ...
- 1,455