59 citations · 475 across the 59 of their papers we have counts for
57 papers · 1 filter
Yang-Mills interaction from boundary vector model
Pavan Dharanipragada, B. Sathiapalan
We construct a non-abelian spin 1 gauge theory with a cubic interaction in AdS from the Exact Renormalisation Group (ERG) flow of a CFT in 3 dimensions. The latter is the ${USp…
Mapping from Exact RG to Holographic RG in Flat Space
B. Sathiapalan
In earlier papers a method was given for constructing from first principles a holographic bulk dual action in Euclidean AdS space for a Euclidean CFT on the boundary. The starting…
Holographic RG from ERG: Locality and General Coordinate Invariance in the Bulk
Pavan Dharanipragada, B. Sathiapalan
In earlier papers it was shown that the correct kinetic term for scalar, vector gauge field and the spin two field in space is obtained starting from the ERG equation f…
Bulk Gauge Fields and Holographic RG from Exact RG
Pavan Dharanipragada, Semanti Dutta, Bala Sathiapalan
Recently, a method was described for deriving Holographic RG equation in space starting from an Exact RG equation of a -dimensional boundary CFT (Sathiapalan, Sonoda…
A Finite Energy-Momentum Tensor for the theory in dimensions
Pavan Dharanipragada, Bala Sathiapalan
Following Brown[1], we construct composite operators for the scalar theory in six dimensions using renormalisation group methods with dimensional regularisation. We express b…
Holographic RG and Exact RG in O(N) Model
B. Sathiapalan
In this paper an Exact Renormalization Group (ERG) equation is written for the the critical model in -dimensions (with ) at the Wilson-Fisher fixed point pert…
Wilson Action for the Model
Semanti Dutta, B. Sathiapalan, H. Sonoda
In this paper the fixed-point Wilson action for the critical model in $D=4-\eps$ dimensions is written down in the $\eps$ expansion to order $\eps^2$. It is obtained by solv…
Holographic Wilson's RG
B. Sathiapalan, H. Sonoda
In an earlier paper (arXiv:1706.03371) a holographic form of the Exact Renormalization Group (ERG) evolution operator for a (perturbed) free scalar field (CFT) in D dimensions was…
Holographic Beta functions for the Generalized Sine Gordon Theory
Prafulla Oak, B. Sathiapalan
The Sine Gordon theory is generalized to include several cosine terms. This is similar to the world sheet description of a string propagating in a tachyon background. This model is…
A Holographic form for Wilson's RG
B. Sathiapalan, Hidenori Sonoda
An attempt is made to make precise the connection between Wilson's RG and "Holographic RG" by writing Wilson's RG in a holographic form. A functional formulation is given for the e…
Exact Renormalization Group and Sine Gordon Theory
Prafulla Oak, B. Sathiapalan
The exact renormalization group is used to study the RG flow of quantities in field theories. The basic idea is to write an evolution operator for the flow and evaluate it in pertu…
Sine-Gordon Theory : Entanglement entropy and holography
Pinaki Banerjee, Atanu Bhatta, B. Sathiapalan
We compute change in entanglement entropy for a single interval in dimensional sine-Gordon model perturbatively in the coupling. The sine-Gordon perturbation can be thought o…
Zero Temperature Dissipation and Holography
Pinaki Banerjee, B. Sathiapalan
We use holographic techniques to study the zero-temperature limit of dissipation for a Brownian particle moving in a strongly coupled CFT at finite temperature in various space-tim…
Exact Renormalization Group and Loop Variables: A Background Independent Approach to String Theory
B. Sathiapalan
This paper is a self contained review of the Loop Variable approach to string theory. The Exact Renormalization Group is applied to a world sheet theory describing string propagati…
Background Independence, Gauge Invariance and Equations of Motion for Closed String Modes
B. Sathiapalan
In an earlier paper [arXiv:1408.0484] gauge invariant and background covariant equations for closed string modes were obtained from the exact renormalization group equation of the…
Gauge Invariance and Equations of Motion for Closed String Modes
B. Sathiapalan
We continue earlier discussions on the exact renormalization group and loop variables on the string world sheet for closed and open string backgrounds. The world sheet action with…
BCS Instability and Finite Temperature Corrections to Tachyon Mass in Intersecting D1-Branes
Sudipto Paul Chowdhury, Swarnendu Sarkar, B. Sathiapalan
A holographic description of BCS superconductivity is given in arxiv:1104.2843. This model was constructed by insertion of a pair of D8-branes on a D4-background. The spectrum of i…
Holographic Brownian Motion in 1+1 Dimensions
Pinaki Banerjee, B. Sathiapalan
We study the motion of a stochastic string in the background of a BTZ black hole. In the 1+1 dimensional boundary theory this corresponds to a very heavy external particle (e.g, a…
Loop Variables and Gauge Invariant Exact Renormalization Group Equations for Closed String Theory
B. Sathiapalan
We formulate the Exact Renormalization Group on the string world sheet for closed string backgrounds. The same techniques that were used for open strings is used here. There are so…
Loop Variables and Gauge Invariant Exact Renormalization Group Equations for (Open) String Theory -II
B. Sathiapalan
In arXiv:1202.4298 gauge invariant interacting equations were writ- ten down for the spin 2 and spin 3 massive modes using the exact renor- malization group of a world sheet theory…
Loop Variables and Gauge Invariant Exact Renormalization Group Equations for (Open) String Theory
B. Sathiapalan
An exact renormalization group equation is written down for the world sheet theory describing the bosonic open string in general backgrounds. Loop variable techniques are used to m…
Strong Coupling BCS Superconductivity and Holography
S. Kalyana Rama, Swarnendu Sarkar, B. Sathiapalan +1
We attempt to give a holographic description of the microscopic theory of a BCS superconductor. Exploiting the analogy with chiral symmetry breaking in QCD we use the Sakai-Sugimot…
Properties of CFTs dual to Charged BTZ black-hole
Debaprasad Maity, Swarnendu Sarkar, B. Sathiapalan +2
We study properties of strongly coupled CFT's with non-zero background electric charge in 1+1 dimensions by studying the dual gravity theory - which is a charged BTZ black hole. Co…
Gauge Invariant Action for the Open Bosonic String: Tachyon Action
B. Sathiapalan
A gauge invariant action for the open bosonic string has been proposed in an earlier paper. We work out the consequences of this proposal for the lowest mode, viz. the tachyon. The…