Results 1  10
of
133
Precision Holography for Nonconformal branes”, presentation by Marika Taylor at String Theory: from theory to experiment
 32nd Johns Hopkins Workshop, Perspectives in String Theory, Seoul, Korea
"... ar ..."
(Show Context)
de Sitter holography and the cosmic microwave background
 JHEP
, 2002
"... Abstract: We interpret cosmological evolution holographically as a renormalisation group flow in a dual Euclidean field theory, as suggested by the conjectured dS/CFT correspondence. Inflation is described by perturbing around the infrared fixed point of the dual field theory. The spectrum of the c ..."
Abstract

Cited by 34 (8 self)
 Add to MetaCart
(Show Context)
Abstract: We interpret cosmological evolution holographically as a renormalisation group flow in a dual Euclidean field theory, as suggested by the conjectured dS/CFT correspondence. Inflation is described by perturbing around the infrared fixed point of the dual field theory. The spectrum of the cosmic microwave background radiation is determined in terms of scaling violations in the field theory. The dark energy allows similar, albeit less predictive, considerations. We discuss the cosmological finetuning
An exact holographic RG flow between 2d conformal fixed points
 JHEP
"... We describe a supersymmetric RG flow between conformal fixed points of a twodimensional quantum field theory as an analytic domain wall solution of the threedimensional SO(4)×SO(4) gauged supergravity. Its ultraviolet fixed point is an N =(4,4) superconformal field theory related, through the doub ..."
Abstract

Cited by 27 (10 self)
 Add to MetaCart
(Show Context)
We describe a supersymmetric RG flow between conformal fixed points of a twodimensional quantum field theory as an analytic domain wall solution of the threedimensional SO(4)×SO(4) gauged supergravity. Its ultraviolet fixed point is an N =(4,4) superconformal field theory related, through the double D1D5 system, to theories modeling the statistical mechanics of black holes. The flow is driven by a relevant operator of conformal dimension ∆ = 3 2 which breaks conformal symmetry and breaks supersymmetry down to N =(1,1), and sends the theory to an infrared conformal fixed point with central charge cIR = cUV/2. Using the supergravity description, we compute counterterms, onepoint functions and fluctuation equations for inert scalars and vector fields, providing the complete framework to compute twopoint correlation functions of the corresponding operators throughout the flow in the twodimensional quantum field theory. This produces a toy model for flows of N = 4 super YangMills theory in 3+1 dimensions, where conformaltoconformal flows have resisted analytical solution.
Holographic and Wilsonian Renormalization Groups
"... We develop parallels between the holographic renormalization group in the bulk and the Wilsonian renormalization group in the dual field theory. Our philosophy differs from most previous work on the holographic RG; the most notable feature is the key role of multitrace operators. We work out the fo ..."
Abstract

Cited by 19 (0 self)
 Add to MetaCart
(Show Context)
We develop parallels between the holographic renormalization group in the bulk and the Wilsonian renormalization group in the dual field theory. Our philosophy differs from most previous work on the holographic RG; the most notable feature is the key role of multitrace operators. We work out the forms of various single and doubletrace flows. The key question, ‘what cutoff on the field theory corresponds to a radial cutoff in the bulk? ’ is left unanswered, but by sharpening the analogy between the two sides we identify possible directions.
Supersymmetric domain walls and strings in D = 5 gauged supergravity coupled to vector multiplets,” JHEP 0303
, 2003
"... We present new supersymmetric domain wall and string solutions of fivedimensional N = 2 gauged supergravity coupled to an arbitrary number of vector multiplets. Using the techniques of very special geometry allows to obtain the most general domain wall preserving half of the supersymmetries. This s ..."
Abstract

Cited by 16 (2 self)
 Add to MetaCart
(Show Context)
We present new supersymmetric domain wall and string solutions of fivedimensional N = 2 gauged supergravity coupled to an arbitrary number of vector multiplets. Using the techniques of very special geometry allows to obtain the most general domain wall preserving half of the supersymmetries. This solution, which describes a renormalization group flow in the dual field theory, is given in terms of Weierstrass elliptic functions. The magnetically charged, one quarter supersymmetric string solutions are shown to be closely related to Liouville theory. We furthermore investigate general product space compactifications, and show that topological transitions from AdS3 × S 2 to AdS3 × H 2 can occur when one moves in moduli space.
Inflation and de Sitter holography
 J. High Energy Phys
"... We develop the relation between de Sitter holography and inflation in detail with particular attention to cosmic density perturbations. We set up the HamiltonJacobi formalism to present a systematic treatment of the logarithmic corrections to a scale invariant spectrum. Our computations can be inte ..."
Abstract

Cited by 16 (4 self)
 Add to MetaCart
(Show Context)
We develop the relation between de Sitter holography and inflation in detail with particular attention to cosmic density perturbations. We set up the HamiltonJacobi formalism to present a systematic treatment of the logarithmic corrections to a scale invariant spectrum. Our computations can be interpreted without reference to holography, as strong infrared effects in gravity. This point of view may be relevant for the finetuning problems inherent to inflation.
Boundary counterterms and the thermodynamics of 2D black holes,” arXiv:hepth/0411121
"... We utilize a novel method to study the thermodynamics of two dimensional type 0A black holes with constant RR flux. Our approach is based on the HamiltonJacobi method of deriving boundary counterterms. We demonstrate this approach by recovering the standard results for a well understood example, Wi ..."
Abstract

Cited by 15 (2 self)
 Add to MetaCart
(Show Context)
We utilize a novel method to study the thermodynamics of two dimensional type 0A black holes with constant RR flux. Our approach is based on the HamiltonJacobi method of deriving boundary counterterms. We demonstrate this approach by recovering the standard results for a well understood example, Witten’s black hole. Between this example and the 0A black hole we find universal expressions for the entropy and black hole mass, as well as the infrared divergence of the partition function. As a nontrivial check of our results we verify the first law of thermodynamics for these systems. Our results for the mass disagree with the predictions of a proposed matrix model dual of the 0A black hole.