Indian Institute of Science Education and Research, Bhopal

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20072026

most citedPerfect Teleportation, Quantum state sharing and Superdense Coding through a Genuinely Entangled Five-qubit State

302 citations

researchers with a paper here

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

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58 papers · 1 filter

hep-th2025

Mock Modularity Of Twisted Index In CHL Models

Nabamita Banerjee, Vedant Bhutra, Ranveer Kumar Singh

We study the twisted partition function of quarter BPS states in CHL models and show that for a large class of single-centered black holes, the degeneracy of microstates is given b…

hep-th2025

$κ$ -symmetric M5 brane web for defects in $A d S_{7} / C F T_{6}$ holography

Varun Gupta

In this work, we will continue our analysis of some general probe M5 brane solutions from our previous work in $A d S_{7} \times S^{4}$ spacetime (appeared in arxiv:2109.08551). These ar…

hep-th2024★ 6 cited

Logarithmic correction to the entropy of a Kerr-Newman family of black holes in $U (1)^{2}$ -charged STU supergravity models

Sudip Karan, Gurmeet Singh Punia, Surajit Biswas

The leading quantum-gravitational correction to the black hole entropy is known to be a universal logarithmic term. In this study, we investigate the logarithmic corrections for th…

hep-th2024

Three point interaction of Dirac fermions with higher spin particles and discrete symmetries

Kushal Chakraborty, Aakash Kumar, Arnab Rudra +1

We constructed all possible kinematically allowed three-point interactions of two massless Dirac spinors with massive higher-spin bosons. In any $D$ spacetime, the interactions hav…

hep-th2023★ 1 cited

$U (N)$ Torus Link Invariants in the Large $N$ limit from Matrix Model Approach

Archana Maji, Kushal Chakraborty, Suvankar Dutta +1

In this paper we study $U (N)$ colored HOMFLY-PT polynomials of torus links in the double scaling limit (polynomial variable $q \to 1$ , $N \to \infty$ keeping $q^{N}$ fi…

hep-th2023★ 3 cited

Mock Modularity In CHL Models

Ajit Bhand, Ashoke Sen, Ranveer Kumar Singh

Dabholkar, Murthy and Zagier (DMZ) proved that there is a canonical decomposition of a meromorphic Jacobi form of integral index for $SL (2, Z)$ with poles on tors…

hep-th2023★ 2 cited

Loop Amplitudes in the Coulomb Branch of $N = 4$ Super-Yang-Mills Theory

Md. Abhishek, Subramanya Hegde, Dileep P. Jatkar +2

We study four point planar loop amplitudes at an arbitrary point in the Coulomb branch of $N = 4$ super-Yang-Mills theory. We study two particle unitary cuts up to four loo…

hep-th2023★ 6 cited

Bulk-Boundary Thermodynamics of Charged Black Holes in Higher Derivative Theory

Gurmeet Singh Punia

The connection between bulk and boundary thermodynamics in Einstein-Maxwell theory is well established using AdS/CFT correspondence. In the context of general higher derivative gra…

hep-th2023★ 28 cited

Revisiting Leading Quantum Corrections to Near Extremal Black Hole Thermodynamics

Nabamita Banerjee, Muktajyoti Saha

Computing the 4D Euclidean path integral to one-loop order we find the large quantum corrections that govern the behavior of a spherically symmetric non-supersymmetric near-extrema…

hep-th2023★ 5 cited

Higher Spin Gravity in $A d S_{3}$ and Folds on Fermi Surface

Suvankar Dutta, Debangshu Mukherjee, Sanhita Parihar

In this paper, we introduce new sets of boundary conditions for higher spin gravity in $A d S_{3}$ where the boundary dynamics of spin two and other higher spin fields are governed by…

hep-th2022★ 8 cited

Soft and Collinear Limits in $N = 8$ Supergravity using Double Copy Formalism

Nabamita Banerjee, Tabasum Rahnuma, Ranveer Kumar Singh

It is known that $N = 8$ supergravity is dual to $N = 4$ super Yang-Mills (SYM) via the double copy relation. Using the explicit relation between scattering amplitu…

hep-th2022★ 14 cited

JT gravity from holographic reduction of 3D asymptotically flat spacetime

Arindam Bhattacharjee, Muktajyoti Saha

We attempt to understand the CFT $_{1}$ structure underlying (2+1)D gravity in flat spacetime via dimensional reduction. We observe that under superrotation, the hyperbolic (and dS$_2…

hep-th2022★ 35 cited

Gravitational Quadratic-in-Spin Hamiltonian at NNNLO in the post-Newtonian framework

Manoj K. Mandal, Pierpaolo Mastrolia, Raj Patil +1

We present the result of the quadratic-in-spin interaction Hamiltonian for binary systems of rotating compact objects with generic spins, up to NNNLO corrections within the post-Ne…

hep-th2022★ 18 cited

Logarithmic correction to black hole entropy in universal low-energy string theory models

Sudip Karan, Gurmeet Singh Punia

We calculate the logarithmic correction to the entropy of asymptotically flat and AdS black holes (rotating, non-rotating, charged, and uncharged) embedded in Einstein-Maxwell-dila…

hep-th2022★ 15 cited

$1/ L^{2}$ corrected soft photon theorem from a CFT $_{3}$ Ward identity

Nabamita Banerjee, Karan Fernandes, Arpita Mitra

Classical soft theorems applied to probe scattering processes on AdS $_{4}$ spacetimes predict the existence of $1/ L^{2}$ corrections to the soft photon and soft graviton factors of asy…

hep-th2022★ 6 cited

On-shell Supersymmetry and higher-spin amplitudes

Mahesh K. N. Balasubramanian, Kushal Chakraborty, Arnab Rudra +1

We use on-shell Supersymmetry to constrain the three-point function of two massless particles and one massive particle in 3+1 dimensions. We use this information to write down the…

hep-th2022★ 41 cited

Gravitational Spin-Orbit Hamiltonian at NNNLO in the post-Newtonian framework

Manoj K. Mandal, Pierpaolo Mastrolia, Raj Patil +1

We present the result of the spin-orbit interaction Hamiltonian for binary systems of rotating compact objects with generic spins, up to NNNLO corrections within the post-Newtonian…

hep-th2022★ 19 cited

String Theory Corrections to Holographic Black Hole Chemistry

Suvankar Dutta, Gurmeet Singh Punia

The connection between the bulk and the boundary first law of thermodynamics in adS space has been discussed in generic higher derivative gravity. String theory corrections to the…

hep-th2022★ 2 cited

Local momentum space: Scalar field and gravity

Sukanta Panda, Abbas Altafhussain Tinwala, Archit Vidyarthi

We use the local momentum space technique to obtain an expansion of the Feynman propagators for scalar field and graviton up to first order in the background curvature. The express…

hep-th2022★ 6 cited

Scattering Amplitudes and BCFW in $N = 2^{*}$ Theory

Md. Abhishek, Subramanya Hegde, Dileep P. Jatkar +1

We use massive spinor helicity formalism to study scattering amplitudes in $N = 2^{*}$ super-Yang-Mills theory in four dimensions. We compute the amplitudes at an arbitrary p…

hep-th2022★ 11 cited

Supersymmetrization of deformed BMS algebras

Nabamita Banerjee, Arpita Mitra, Debangshu Mukherjee +1

$W (a, b)$ and $W (a, b; a ˉ, b ˉ)$ algebras are deformations of $bms_{3}$ and $bms_{4}$ algebra respectively. We present an $N = 2$ supersymmetric…

hep-th2021★ 7 cited

Covariant Effective Action for Generalized Proca Theories

Sukanta Panda, Abbas Tinwala, Archit Vidyarthi

We investigate quantum stability of the generalised Proca theories in curved spacetime treating gravity as a dynamical field. To compute the quantum gravitational corrections we ev…

hep-th2021★ 10 cited

Higher Derivative Scalar Tensor Theory in Unitary Gauge

Pawan Joshi, Sukanta Panda

Ostrogradsky instability generally appears in nondegenerate higher-order derivative theories and this issue can be resolved by removing any existing degeneracy present in such theo…

hep-th2021★ 8 cited

Asymptotic Symmetry of Four Dimensional Einstein-Yang-Mills and Einstein-Maxwell Theory