91 citations · 423 across the 32 of their papers we have counts for
32 papers
Generating Rotation in a Snap
Soumangsu Chakraborty, Pierre Heidmann, Gela Patashuri
We build a technique to generate rotation from arbitrary static solutions that asymptote to four- or five-dimensional Minkowski spacetime based on Clément's approach [1]. The metho…
Microstates of Non-extremal Black Holes: A New Hope
Soumangsu Chakraborty, Pierre Heidmann
We provide a new roadmap for constructing microstates of non-extremal black holes in supergravity. First, we review the non-linear sigma model of five-dimensional supergravity gove…
Effective
Soumangsu Chakraborty, Amit Giveon, David Kutasov
In arXiv:2109.00065, it was pointed out that superstring theory on with -field background and is dual to a symmetric product CFT deform…
Path integral of free fields and the determinant of Laplacian in warped space-time
Soumangsu Chakraborty, Akikazu Hashimoto, Horatiu Nastase
We revisit the problem of computing the determinant of Klein-Gordon operator on Euclideanized with the Euclideanized time coordinate compactified with…
The M2-M5 Mohawk
Iosif Bena, Soumangsu Chakraborty, Dimitrios Toulikas +1
We show that the near-brane back-reaction of M2 branes ending on M5 branes has a rich "spike structure" that is determined by partitioning the numbers of M2 branes that are termina…
Thermal partition function of deformed
Soumangsu Chakraborty, Amit Giveon, Akikazu Hashimoto
We derive a compact formula for the one-loop, bosonic string partition function of Euclideanized deformed with periodic Euclidean time as an integral transfo…
On string theory on deformed BTZ and
Soumangsu Chakraborty, Amit Giveon, Akikazu Hashimoto
Aspects of superstring theory on deformed BTZ black holes, formed near ~NS5 branes by ~fundamental strings, and single-trace holography, are presented. The excitati…
A 4d non-BPS NS-NS microstate
Soumangsu Chakraborty, Shaun D. Hampton
We construct a two-parameter four-dimensional non-BPS NS-NS smooth microstate solution that asymptotes to flat spacetime with a linear dilaton in type II superstring theory. From t…
States, symmetries and correlators of and symmetric orbifolds
Soumangsu Chakraborty, Silvia Georgescu, Monica Guica
We derive various properties of symmetric product orbifolds of and - deformed CFTs from a field-theoretical perspective. First, we generalise the known formul…
Comments on Single-Trace Holography
Soumangsu Chakraborty, Amit Giveon, David Kutasov
We explore the holographic duality between string theory in backgrounds that interpolate between asymptotically linear dilaton spacetime in the UV and in the IR, and single…
Momentum in Single-trace Holography
Soumangsu Chakraborty, Amit Giveon, David Kutasov
We extend the study of 2006.13249, 2303.12422 to black strings with general momentum, and discuss their interpretation in single-trace deformed .
Linear response of entanglement entropy to in massive QFTs
Shachar Ashkenazi, Soumangsu Chakraborty, Zhanyu Ma +1
We compute the leading correction to entanglement entropy in deformed massive QFTs. We show that both for massive scalar and Dirac fermion, the leading order correction…
Solvable time-like cosets and holography beyond
Soumangsu Chakraborty, Mikhail Goykhman
We build a novel time-like coset sigma-model describing type-II superstring theory in a charged rotating black-brane background that interpolates between a locally in the I…
Comments on the negative specific heat of the deformed symmetric product CFT
Soumangsu Chakraborty, Akikazu Hashimoto
We show that the deformation of conformal field theories whose entropy grows as for exhibits negative specific heat in its microcanonical thermo…
Long-range fermions and critical dualities
Noam Chai, Soumangsu Chakraborty, Mikhail Goykhman +1
We construct long-range fermionic models with the Gross-Neveu and Gross-Neveu-Yukawa interaction, and argue that their critical regimes are equivalent. To this end, we calculate va…
Weighed average over Narain moduli space as deformation of CFT target space
Soumangsu Chakraborty, Akikazu Hashimoto
We consider the weighted average of a two dimensional CFT, whose target space is , over its Narain moduli space. We take as the weighing function the integral kernel which giv…
Critical long-range vector model in the UV
Soumangsu Chakraborty, Mikhail Goykhman
We study interacting critical UV regime of the long-range vector model with quartic coupling. Analyzing CFT data within the scope of - and -expansion, we collect evi…
Holographic Complexity of LST and Single Trace
Soumangsu Chakraborty, Gaurav Katoch, Shubho R. Roy
In this work, we continue our study of string theory in the background that interpolates between in the IR to flat spacetime with a linear dilaton in the UV. The boundary d…
CFT, NS5F1 system and single trace
Soumangsu Chakraborty
In this paper we prove the equivalence among (i) the weakly coupled worldsheet string theory described by the coset sigma model $\frac{SL(2,\mathbb{R})_k\times U(1)}{U(1)}\times S^…
Entanglement Entropy for , , deformed holographic CFT
Soumangsu Chakraborty, Akikazu Hashimoto
We derive the geodesic equation for determining the Ryu-Takayanagi surface in deformed by single trace deforma…
Strings in Irrelevant Deformations of
Soumangsu Chakraborty, Amit Giveon, David Kutasov
We generalize our recent analysis [2006.13249] of probe string dynamics to the case of general single-trace , and deformations. We show that in regions…
and Deformations in Quantum Mechanics
Soumangsu Chakraborty, Amiya Mishra
In this paper, we continue the study of deformation in quantum mechanical systems and propose possible analogues of deformation and deformation by a gen…
Comments on D3-Brane Holography
Soumangsu Chakraborty, Amit Giveon, David Kutasov
We revisit the idea that the quantum dynamics of open strings ending on D3-branes in the large limit can be described at large `t Hooft coupling by classical closed string…
, Black Holes and Negative Strings
Soumangsu Chakraborty, Amit Giveon, David Kutasov
String theory on has a solvable single-trace irrelevant deformation that is closely related to . For one sign of the coupling, it leads to an asymptotically linear…