189 citations · 986 across the 27 of their papers we have counts for
27 papers
Temporal steering of entanglement decay with single-shot control
Saumya Ranjan Behera, Kallol Sen, Animesh Sinha Roy +4
Entanglement in open quantum systems can vanish abruptly through entanglement sudden death (ESD) under dissipative evolution, posing a challenge for quantum technologies. Here, we…
Temporal steering of entanglement decay with single-shot control
Saumya Ranjan Behera, Kallol Sen, Animesh Sinha Roy +4
Entanglement in open quantum systems can vanish abruptly through entanglement sudden death (ESD) under dissipative evolution, posing a challenge for quantum technologies. Here, we…
Quantum-walk search in motion
Himanshu Sahu, Kallol Sen
In quantum computing, the quantum walk search algorithm is designed for locating fixed marked nodes within a graph. However, when multiple marked nodes exist, the conventional sear…
Complexity for one-dimensional discrete time quantum walk circuits
Aranya Bhattacharya, Himanshu Sahu, Ahmadullah Zahed +1
We compute the complexity for the mixed state density operator derived from a one-dimensional discrete-time quantum walk (DTQW). The complexity is computed using a two-qubit quantu…
Exploring localization with a step dependent coin
Kallol Sen
We generalize the coin operator of \cite{Zahed_2023}, to include a step dependent feature which induces localization in . This is evident from the probability distributions whi…
A simple coin for a entangled walk
Ahmadullah Zahed, Kallol Sen
We analyze the effect of a simple coin operator, built out of Bell pairs, in a Discrete Quantum Random Walk (DQRW) problem. The specific form of the coin enables us to find an…
Notes on AdS-Schwarzschild eikonal phase
Andrei Parnachev, Kallol Sen
We consider the eikonal phase associated with the gravitational scattering of a highly energetic light particle off a very heavy object in AdS spacetime. A simple expression for th…
Regge amplitudes in Generalized Fishnet and Chiral Fishnet Theories
Subham Dutta Chowdhury, Parthiv Haldar, Kallol Sen
We extend the analysis of \cite{Chowdhury:2019hns} to study the Regge trajectories of the Mellin amplitudes of the and magnon correlators of the generalized Fishnet theor…
Relating diagrammatic expansion with conformal correlator expansion
Sunny Guha, Kallol Sen
In this note we study the possible connection between functions appearing in diagrammatic expansion and the conformal correlator expansion. To study the connection we propose a gen…
On the Regge limit of Fishnet correlators
Subham Dutta Chowdhury, Parthiv Haldar, Kallol Sen
We study the Regge trajectories of the Mellin amplitudes of the and magnon correlators of the Fishnet theory. Since fishnet theory is both integrable and conformal, th…
Positive geometry in the diagonal limit of the conformal bootstrap
Kallol Sen, Aninda Sinha, Ahmadullah Zahed
We consider the diagonal limit of the conformal bootstrap in arbitrary dimensions and investigate the question if physical theories are given in terms of cyclic polytopes. Recently…
Resummation at finite conformal spin
Carlos Cardona, Sunny Guha, Surya Kiran Kanumilli +1
We generalize the computation of anomalous dimension and correction to OPE coefficients at finite conformal spin considered recently in \cite{arXiv:1806.10919, arXiv:1808.00612} to…
Polology of Superconformal Blocks
Kallol Sen, Masahito Yamazaki
We systematically classify all possible poles of superconformal blocks as a function of the scaling dimension of intermediate operators, for all superconformal algebras in dimensio…
Anomalous dimensions at finite conformal spin from OPE inversion
Carlos Cardona, Kallol Sen
We compute anomalous dimensions of higher spin operators in Conformal Field Theory at arbitrary space-time dimension by using the OPE inversion formula of \cite{Caron-Huot:2017vep}…
First-order conformal perturbation theory by marginal operators
Kallol Sen, Yuji Tachikawa
We perform conformal perturbation theory by marginal operators to first order. A suitable renormalization method is needed that makes the conformal invariance of the deformed corre…
A Mellin space approach to the conformal bootstrap
Rajesh Gopakumar, Apratim Kaviraj, Kallol Sen +1
We describe in more detail our approach to the conformal bootstrap which uses the Mellin representation of four point functions and expands them in terms of crossing symmet…
Conformal Bootstrap in Mellin Space
Rajesh Gopakumar, Apratim Kaviraj, Kallol Sen +1
We propose a new approach towards analytically solving for the dynamical content of Conformal Field Theories (CFTs) using the bootstrap philosophy. This combines the original boots…
More on analytic bootstrap for O(N) models
Parijat Dey, Apratim Kaviraj, Kallol Sen
This note is an extension of a recent work on the analytical bootstrapping of models. An additonal feature of the model is that the OPE contains trace and antisymmetr…
Assembling topological insulators with lasers
Sayonee Ray, Kallol Sen, Tanmoy Das
Despite the realizations of spin-orbit (SO) coupling and synthetic gauge fields in optical lattices, the associated time-reversal symmetry breaking, and 1D nature of the observed S…
On critical exponents without Feynman diagrams
Kallol Sen, Aninda Sinha
In order to achieve a better analytic handle on the modern conformal bootstrap program, we re-examine and extend the pioneering 1974 work of Polyakov's, which was based on consiste…
Universal anomalous dimensions at large spin and large twist
Apratim Kaviraj, Kallol Sen, Aninda Sinha
In this paper we consider anomalous dimensions of double trace operators at large spin () and large twist () in CFTs in arbitrary dimensions (). Using analytic co…
Analytic bootstrap at large spin
Apratim Kaviraj, Kallol Sen, Aninda Sinha
We use analytic conformal bootstrap methods to determine the anomalous dimensions and OPE coefficients for large spin operators in general conformal field theories in four dimensio…
A Strongly Coupled Anisotropic Fluid From Dilaton Driven Holography
Sachin Jain, Nilay Kundu, Kallol Sen +2
We consider a system consisting of dimensional gravity with a negative cosmological constant coupled to a massless scalar, the dilaton. We construct a black brane solution whic…
Holographic stress tensor at finite coupling
Kallol Sen, Aninda Sinha
We calculate one, two and three point functions of the holographic stress tensor for any bulk Lagrangian of the form . Using the…