69 citations · 658 across the 56 of their papers we have counts for
56 papers · 1 filter
Islands and Icebergs may contribute nothing to the Page curve
Harvendra Singh
We study the entanglement entropy of a subsystem in contact with symmetrical bath where the complete system lives on the boundary of AdS3 spacetime. The system-A is taken to be in…
The information horizon entropy for quantum dot and a symmetrical bath
Harvendra Singh
We study the entropy of quantum-dot system in contact with a symmetrical CFT bath living on the boundary of pure AdS3 black hole. The q-dot is localized at the centre of bath syste…
Holography and quantum information exchange between systems
Harvendra Singh
We estimate the net information exchange between adjacent quantum subsystems holographically living on the boundary of spacetime. The information exchange is a real time phen…
Entanglement entropy and the first law at third order for boosted black branes
Sabyasachi Maulik, Harvendra Singh
Gauge/gravity duality relates an AdS black hole with uniform boost with a boosted strongly-coupled CFT at finite temperature. We study the perturbative change in holographic entang…
Holographic entanglement entropy for spacetime with string excitations
Sabyasachi Maulik, Harvendra Singh
The (F1,D2,D8) brane configuration with geometry is a known Lifshitz vacua supported by massive field in type IIA theory. This system a…
RG flows and cascades of vacua
Harvendra Singh
The (F1,D2,D8) brane configuration produces Lifshitz vacua supported by `massive' -field. We present exact deformations of this system under…
Entanglement entropy at higher orders for the states of a = 3 θ = 1 Lifshitz theory
Rohit Mishra, Harvendra Singh
We evaluate the entanglement entropy of strips for boosted D3-black-branes compactified along the lightcone coordinate. The bulk theory describes -dimensional , L…
Instantonic string solitons on M5 branes
Harvendra Singh
The (I)nstantonic strings are described as extended states occupying a flat (isometry) direction on the multiple M5-brane world-volume. These are constituted by 4-dimensional gauge…
D2-D8 system with massive strings and the Lifshitz spacetimes
Harvendra Singh
The Romans type IIA supergravity allows fundamental strings to have explicit mass term at the tree level. We show that there exists a (F1,D2,D8) brane configuration which gives ris…
Entanglement asymmetry for boosted black branes
Rohit Mishra, Harvendra Singh
We study the effects of asymmetry in entanglement thermodynamics of the CFT subsystems. It is found that `boosted' -branes backgrounds give rise to the first law of the entangle…
Perturbative entanglement thermodynamics for AdS spacetime: Renormalization
Rohit Mishra, Harvendra Singh
We study the effect of charged excitations in the AdS spacetime on the first law of entanglement thermodynamics. It is found that `boosted' AdS black holes give rise to a more gene…
AdS Bubbles, E-branes and Entanglement
Harvendra Singh
The AdS-bubble solutions interestingly mimic Schrödinger-like geometries when expressed in light-cone coordinates. These D bubble vacuas exhibit asymmetric scaling property with…
Schrödinger Spacetimes with Screen and Reduced Entanglement
Harvendra Singh
We study a particular class of type II string vacua which become Schrödinger like spacetime in the IR region but are conformally AdS in asymptotic UV region. These solutions are fo…
Lifshitz to AdS flow with interpolating p-brane solutions
Harvendra Singh
In continuation with our studies of Lifshitz like D-brane solutions, we propose a class of 1/4 BPS supersymmetric interpolating solutions which interpolate between IR Lifshitz s…
The Yang-Mills and chiral fields in six dimensions
Harvendra Singh
In previous work (Singh, 2011), we constructed an action in six dimensions using Yang-Mills fields and an auxiliary Abelian field. Here we first write down all the equations of mot…
Lifshitz/Schrödinger D-p-branes and dynamical exponents
Harvendra Singh
We extend our earlier study of special double limits of `boosted' black hole solutions to include all black D-branes of type II strings. We find that Lifshitz solutions…
Super-Yang-Mills and M5-branes
Harvendra Singh
We uplift 5-dimensional super-Yang-Mills theory to a 6-dimensional gauge theory with the help of a space-like constant vector , whose norm determines the Yang-Mills coupling c…
Holographic flows to IR Lifshitz spacetimes
Harvendra Singh
Recently we studied `vanishing' horizon limits of `boosted' black D3-brane geometry \cite{hsnr}. The type IIB solutions obtained by taking these special double limits were found to…
Special limits and non-relativistic solutions
Harvendra Singh
We study special vanishing horizon limit of `boosted' black D3-branes having a compact light-cone direction. The type IIB solution obtained by taking such a zero temperature limit…
Galilean type IIA backgrounds and a map
Harvendra Singh
We obtain non-relativistic AdS4 X CP3 solutions with dynamical exponent 3 in type IIA string theory, both with and without Romans mass. The compactifications to four dimensions are…
Galilean anti-de-Sitter spacetime in Romans theory
Harvendra Singh
The Romans type IIA theory is the only known example of 10-dimensional maximal supergravity where (tensor) fields are explicitly massive. We provide an example of a non-relativisti…
More on the scalar-tensor B-F theory
Harvendra Singh
This work is based on an earlier proposal \cite{hs} that the membrane B-F theory consists of matter fields alongwith Chern-Simons fields as well as the auxiliary pairs of scalar an…
M2-brane Flows and the Chern-Simons Level
Chethan Krishnan, Carlo Maccaferri, Harvendra Singh
The Chern-Simons level k of ABJM gauge theory captures the orbifolding in the dual geometry. This suggests that if we move the membranes away from the tip of the orbifold to a smoo…
SU(N) membrane theory with dual-pairs
Harvendra Singh
We construct a SU(N) membrane theory with dual pairs of scalar and tensor fields. The moduli space of the theory is precisely that of M2-branes on the noncompact fl…