46 citations · 210 across the 21 of their papers we have counts for
22 papers
L-entropy: A new genuine multipartite entanglement measure
Jaydeep Kumar Basak, Vinay Malvimat, Junggi Yoon
We advance ``Latent entropy" (L-entropy) as a novel measure to characterize genuine multipartite entanglement in pure states, applicable to quantum systems with both finite and inf…
Aspects of holographic timelike entanglement entropy in black hole backgrounds
Mir Afrasiar, Jaydeep Kumar Basak, Keun-Young Kim
We study the holographic construction of timelike entanglement entropy (tEE) in black hole backgrounds in Lorentzian geometries. The holographic tEE is realized through extremal su…
Probing the Hierarchy of Genuine Multipartite Entanglement with Generalized Latent Entropy
Byoungjoon Ahn, Jaydeep Kumar Basak, Keun-Young Kim +3
We introduce generalization of the recently proposed \textit{Latent Entropy} (L-entropy) \cite{Basak:2024uwc} as a refined measure of genuine multipartite entanglement (GME) in pur…
Holographic Timelike Entanglement Entropy in Non-relativistic Theories
Mir Afrasiar, Jaydeep Kumar Basak, Dimitrios Giataganas
Timelike entanglement entropy is a complex measure of information that is holographically realized by an appropriate combination of spacelike and timelike extremal surfaces. This m…
A New Genuine Multipartite Entanglement Measure: from Qubits to Multiboundary Wormholes
Jaydeep Kumar Basak, Vinay Malvimat, Junggi Yoon
We introduce the \textit{Latent Entropy} (L-entropy) as a novel measure to characterize the genuine multipartite entanglement in quantum systems. Our measure leverages the upper bo…
Timelike Entanglement Entropy and Phase Transitions in non-Conformal Theories
Mir Afrasiar, Jaydeep Kumar Basak, Dimitrios Giataganas
We propose a holographic formalism for a timelike entanglement entropy in non-conformal theories. This pseudoentropy is a complex-valued measure of information, which, in holograph…
Holographic Reflected Entropy and Islands in Interface CFTs
Jaydeep Kumar Basak, Debarshi Basu, Vinay Malvimat +2
We investigate the reflected entropy for various mixed state configurations in the two dimensional holographic conformal field theories sharing a common interface (ICFTs). In the A…
Massless Lifshitz Field Theory for Arbitrary
Jaydeep Kumar Basak, Adrita Chakraborty, Chong-Sun Chu +2
By using the notion of fractional derivatives, we introduce a class of massless Lifshitz scalar field theory in (1+1)-dimension with an arbitrary anisotropy index . The Lifshitz…
Reflected entropy and Markov gap in non-inertial frames
Jaydeep Kumar Basak, Dimitrios Giataganas, Sayid Mondal +1
We explore the reflected entropy and the Markov gap between two modes of a free fermionic field as observed by accelerating observers. This is done for both bipartite system which…
Reflected Entropy for Communicating Black Holes II: Planck Braneworlds
Mir Afrasiar, Jaydeep Kumar Basak, Ashish Chandra +1
We obtain the reflected entropy for bipartite mixed state configurations of two adjacent and disjoint subsystems at a finite temperature in finite-sized non-gravitating reservoirs…
Reflected Entropy for Communicating Black Holes I: Karch-Randall Braneworlds
Mir Afrasiar, Jaydeep Kumar Basak, Ashish Chandra +1
We obtain the reflected entropy for bipartite mixed state configurations of two adjacent and disjoint intervals at a finite temperature in s with two distinct boundaries th…
Time evolution of spread complexity in quenched Lipkin-Meshkov-Glick model
Mir Afrasiar, Jaydeep Kumar Basak, Bidyut Dey +2
We use the spread complexity of a time evolved state after a sudden quantum quench in the Lipkin-Meshkov-Glick (LMG) model prepared in the ground state as a probe of quantum phase…
Reflected Entropy and Entanglement Negativity for Holographic Moving Mirrors
Jaydeep Kumar Basak, Debarshi Basu, Vinay Malvimat +2
We investigate the time evolution of reflected entropy and entanglement negativity for mixed state configurations involving two adjacent and disjoint intervals in the radiation flu…
Islands for Entanglement Negativity in Communicating Black Holes
Mir Afrasiar, Jaydeep Kumar Basak, Ashish Chandra +1
We obtain the holographic entanglement negativity for bipartite mixed states at a finite temperature in baths described by conformal field theories dual to configurations involving…
Odd entanglement entropy in Galilean conformal field theories and flat holography
Jaydeep Kumar Basak, Himanshu Chourasiya, Vinayak Raj +1
The odd entanglement entropy (OEE) for bipartite states in a class of -dimensional Galilean conformal field theories () is obtained through an appropriate replic…
Reflected entropy in Galilean conformal field theories and flat holography
Jaydeep Kumar Basak, Himanshu Chourasiya, Vinayak Raj +1
We obtain the reflected entropy for bipartite states in a class of -dimensional Galilean conformal field theories () through a replica technique. Furthermore we…
Holographic Entanglement Negativity for Disjoint Subsystems in Conformal Field Theories with a Conserved Charge
Mir Afrasiar, Jaydeep Kumar Basak, Vinayak Raj +1
We investigate the extension of a holographic construction for the entanglement negativity of two disjoint subsystems in proximity to s with a conserved charge dual to bulk…
Page Curve for Entanglement Negativity through Geometric Evaporation
Jaydeep Kumar Basak, Debarshi Basu, Vinay Malvimat +2
We compute the entanglement negativity for various pure and mixed state configurations in a bath coupled to an evaporating two dimensional non-extremal Jackiw-Teitelboim (JT) black…
Covariant holographic negativity from the entanglement wedge in AdSCFT
Jaydeep Kumar Basak, Himanshu Parihar, Boudhayan Paul +1
We propose a covariant holographic construction based on the extremal entanglement wedge cross section, for the entanglement negativity of bipartite states in s dual to…
Islands for Entanglement Negativity
Jaydeep Kumar Basak, Debarshi Basu, Vinay Malvimat +2
We advance two alternative proposals for the island contributions to the entanglement negativity of various pure and mixed state configurations in quantum field theories coupled to…
On minimal entanglement wedge cross section for holographic entanglement negativity
Jaydeep Kumar Basak, Vinay Malvimat, Himanshu Parihar +2
We demonstrate the equivalence of two different conjectures in the literature for the holographic entanglement negativity in AdS/CFT, modulo certain constants. These propos…
Holographic entanglement negativity for disjoint subsystems in
Jaydeep Kumar Basak, Himanshu Parihar, Boudhayan Paul +1
We propose a construction to compute the holographic entanglement negativity for bipartite mixed state configurations of two disjoint subsystems in higher dimensional conformal fie…