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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 ...
phonon's user avatar
  • 169
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), ...
ConfusedPhDstudent's user avatar
1 vote
0 answers
76 views

Derivatives as "dynamical variables of the theory"?

This question will probably sounds very broad. So, I work with classical general relativity, a bit of field theory and semiclassical gravity. I have a friend, though, that works with things like ...
M.N.Raia's user avatar
  • 3,085
1 vote
0 answers
118 views

MAGOO 2-Point Correlation function derivation

I am studying the famous MAGOO review and I am trying to understand section 3.3 where we calculate the correlation functions from the AdS side. In subsection 3.3.1 the authors go through the 2-point ...
twisted manifold's user avatar
5 votes
0 answers
376 views

Spin-2 operators from metric fluctuations in the AdS/CFT

This is a computational question. I am pretty sure that there is a simple explanation, and something obvious that I am missing but I cannot figure it out. I want to add that this is not meant to be a &...
user avatar
4 votes
1 answer
145 views

Confusion about Generating Functionals in AdS/CFT

I have a question regarding an equation in the book "Gauge/Gravity Duality" by Martin Ammon and Johanna Erdmenger which however can also be found in other AdS/CFT books or lecture notes. The ...
olse barn's user avatar
1 vote
0 answers
115 views

Is Supergravity just Super String Theory without open strings?

I'm trying to understand the elements of the AdS-CFT correspondence. The definition I have in mind is a correspondence between: (A) a Super String Theory of $D_p$-branes and closed strings in a $10$d ...
Mauro Giliberti's user avatar
1 vote
0 answers
44 views

What is a protected states in Supersymmetry, Superstring theory context

I know that they are the states that have protected scaling dimension when couplings are changed. But there are some states that are protected only in free orbifold theory, this is something I don't ...
Vijay Patel's user avatar
3 votes
1 answer
1k views

Relationship between scaling dimension and mass in AdS/CFT

I've been reading Horatiu Nastase's notes on AdS/CFT, but I was confused about a certain relationship he claimed. If we compactify supergravity on $AdS_5\times S^5$, we may expand the fields in Kaluza-...
arow257's user avatar
  • 1,055
2 votes
0 answers
79 views

Holographic duals of (super)gravity sigma models

Consider a (super)gravity theory on asymptotically AdS spacetime $N$ with fixed conformal boundary $\partial N$ coupled to scalars $\phi_i$ taking values in a manifold $M$, possibly in addition to ...
Arpan Saha's user avatar
2 votes
0 answers
84 views

What is the origin of the five-form field in bubbling Ads geometries?

I have been reading the paper: Bubbling Ads space and the 1/2 BPS geometries[hep-th/0409174]. In the paper they look at 1/2 BPS states in the field theory which are dual to D3 branes IIB supegravity. ...
Kay Modikai's user avatar
3 votes
1 answer
450 views

Global symmetries in type IIB string theory vs type IIB supergravity

In the AdS/CFT correspondence I know that the mapping of global symmetries involves also the S duality that in the field theory side is $SL(2,Z)$. In Type IIB supegravity this duality is $SL(2,R)$. I ...
Andrea89's user avatar
  • 582
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{...
leastaction's user avatar
  • 2,095
8 votes
2 answers
4k views

Breitenlohner-Freedman (BF) stability condition

I am looking for a simple way to derive the Breitenlohner-Freedman (BF) bound. Actually I can't understand why we have stability above the BF bound and instability below the BF bound, while both have ...
user44609's user avatar
  • 203
7 votes
1 answer
359 views

Superconformal approach to supergravity

In the book (Supergravity - Daniel Z.Freedman & Antoine Van Proeyen - Cambridge), there is (Chapters 16-17) a presentation of pure supergravity or supergravity with matter, from a superconformal ...
Trimok's user avatar
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