Saha Institute of Nuclear Physics

output

19932026

most citedCombined Measurement of the Higgs Boson Mass in

pp

Collisions at

s = 7

and 8 TeV with the ATLAS and CMS Experiments

1.4k citations

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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

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350 papers · 1 filter

hep-th2026

On Global Embedding of Assisted Fibre Inflation

George K. Leontaris, Pramod Shukla

Fibre inflation is one of the most attractive models realized in the type IIB orientifold compactification. It is embedded in the framework of L(arge) V(olume) S(cenarios) using a…

hep-th2026

Carroll hydrodynamics with spin

Ashish Shukla, Rajeev Singh, Pushkar Soni

We formulate Carroll hydrodynamics with the inclusion of a spin current. Our strategy relies on the fact that the $c \to 0$ limit of relativistic hydrodynamics yields the equations…

hep-th2025

Metallic transports from Taub-NUT AdS black holes

Mohd Aariyan Khan, Hemant Rathi, Dibakar Roychowdhury

We compute holographic DC conductivity associated with the Taub-NUT- $A d S_{4}$ black holes following the probe D-brane approach. In particular, we examine the effects of frame draggin…

hep-th2025★ 16 cited

The Carrollian Kaleidoscope

Arjun Bagchi, Aritra Banerjee, Prateksh Dhivakar +2

The Carroll group arises in the vanishing speed of light limit of the Poincaré group and was initially discarded as just a mathematical curiosity. However, recent developments have…

hep-th2025★ 1 cited

Perturbative LVS and Inflation: A Review of Volume Modulus and Fibre Scenarios

George K. Leontaris, Pramod Shukla

In type IIB superstring compactifications, incorporating log-loop corrections and higher-derivative $(α^{'})^{3}$ -corrections can stabilize the overall volume of the compact int…

hep-th2025

Entanglement entropy and its linear response following a global quench in holographic Gauss-Bonnet gravity

Sabyasachi Maulik, Soumen Pari

Growth of entanglement entropy in time-dependent states formed due to a global quench in holographic conformal field theories which admit an Einstein-Gauss-Bonnet dual gravity desc…

hep-th2025★ 2 cited

Holographic central charge for sine dilaton gravity

Paramesh Mahapatra, Hemant Rathi, Dibakar Roychowdhury

In this paper, we calculate the holographic central charge ( $c_{sD G}$ ) associated with sine dilaton gravity (sDG) in the semiclassical limit. In the low energy limit, the sDG flows…

hep-th2024★ 13 cited

Brickwall One-Loop Determinant: Spectral Statistics & Krylov Complexity

Hyun-Sik Jeong, Arnab Kundu, Juan F. Pedraza

We investigate quantum chaotic features of the brickwall model, which is obtained by introducing a stretched horizon - a Dirichlet wall placed outside the event horizon - within th…

hep-th2024★ 2 cited

Causal and Stable Superfluid Hydrodynamics

Raphael E. Hoult, Ashish Shukla

We investigate the linearized stability and causality properties of relativistic viscous superfluid hydrodynamics. The Landau-Lifshitz-Clark-Putterman formulation for the theory of…

hep-th2024★ 13 cited

Topology of black hole phase transition in JT gravity

Hemant Rathi, Dibakar Roychowdhury

We present a JT gravity setup coupled with $U (1)$ and $S U (2)$ Yang-Mills fields in two dimensions that reveals the onset of a small black hole to large black hole phase transition…

hep-th2024★ 4 cited

Hydrodynamics in the Carrollian regime

Kedar S. Kolekar, Taniya Mandal, Ashish Shukla +1

Carroll hydrodynamics arises in the $c \to 0$ limit of relativistic hydrodynamics. Instances of its relevance include the Bjorken and Gubser flow models of heavy-ion collisions, whe…

hep-th2024★ 10 cited

Bootstrapping spinning two body problem in dynamical Chern-Simons gravity using worldline QFT

Arpan Bhattacharyya, Debodirna Ghosh, Saptaswa Ghosh +1

In this paper, we compute the WQFT partition function, specifically the eikonal phase in a black hole scattering event in the dynamical Chern-Simons theory, using the techniques of…

hep-th2024★ 5 cited

Exploring critical behavior of thermodynamic variables of the Kerr-Newman-AdS black hole in the restricted phase space

Pabitra Tripathy

The present work delves into examining the thermodynamic properties of the four-dimensional Kerr-Newmann-AdS black hole, employing the recently proposed framework of restricted pha…

hep-th2023★ 13 cited

Exactly Solvable Floquet Dynamics for Conformal Field Theories in Dimensions Greater than Two

Diptarka Das, Sumit R. Das, Arnab Kundu +1

We find classes of driven conformal field theories (CFT) in d + 1 dimensions with d > 1, whose quench and Floquet dynamics can be computed exactly. The setup is suitable for studyi…

hep-th2023★ 19 cited

What is the Simplest Linear Ramp?

Suman Das, Sumit K. Garg, Chethan Krishnan +1

We discuss conditions under which a deterministic sequence of real numbers, interpreted as the set of eigenvalues of a Hamiltonian, can exhibit features usually associated to rando…

hep-th2023★ 30 cited

One-Loop Quantum Effects in Carroll Scalars

Kinjal Banerjee, Rudranil Basu, Bhagya Krishnan +3

Carrollian field theories at the classical level possess an infinite number of space-time symmetries, namely the supertranslations. In this article, we inquire whether these symmet…

hep-th2023★ 41 cited

State Dependence of Krylov Complexity in $2 d$ CFTs

Arnab Kundu, Vinay Malvimat, Ritam Sinha

We compute the Krylov Complexity of a light operator $O_{L}$ in an eigenstate of a $2 d$ CFT at large central charge $c$ . The eigenstate corresponds to a primary operator $\…

hep-th2022★ 22 cited

Pseudo complexity of purification for free scalar field theories

Aranya Bhattacharya, Arpan Bhattacharyya, Sabyasachi Maulik

We compute the pseudo complexity of purification corresponding to the reduced transition matrices for free scalar field theories with an arbitrary dynamical exponent. We plot the b…

hep-th2022★ 9 cited

Fast Scrambling of mutual information in Kerr-AdS $_{5}$

Vinay Malvimat, Rohan R. Poojary

We compute the disruption of mutual information in a TFD state dual to a Kerr black hole with equal angular momenta in $A d S_{5}$ due to an equatorial shockwave. The shockwave respect…

hep-th2022★ 18 cited

Noncommutativity and logarithmic correction to the black hole entropy

Kumar S. Gupta, Tajron Jurić, Anđelo Samsarov +1

We study the noncommutative corrections to the entropy of the Reissner-Nordström black hole using a $κ$ -deformed scalar probe within the brick-wall framework. The noncommutativity…

hep-th2022★ 3 cited

More on entanglement properties of $L i f_{4}^{(2)} \times S^{1} \times S^{5}$ spacetime with string excitations

Sabyasachi Maulik

The $L i f_{4}^{(2)} \times S^{1} \times S^{5}$ spacetime is an exact solution of $F 1 - D 2 - D 8$ configuration in type IIA supergravity and can accommodate charged excitations of the fundame…

hep-th2022★ 24 cited

Synthetic Fuzzballs: A Linear Ramp from Black Hole Normal Modes

Suman Das, Chethan Krishnan, A. Preetham Kumar +1

We consider a black hole with a stretched horizon as a toy model for a fuzzball microstate. The stretched horizon provides a cut-off, and therefore one can determine the normal (as…

hep-th2022★ 12 cited

Fast Scrambling of Mutual Information in Kerr-AdS $_{4}$