51 citations · 147 across the 6 of their papers we have counts for
29 papers
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…
Ringdown of Charged Compact Objects using Membrane Paradigm
Mostafizur Rahman, Arpan Bhattacharyya
Although the black holes are an integral part of the standard model of astrophysics and cosmology, their existence poses some serious fundamental problems. In recent years, several…
Islands and complexity of eternal black hole and radiation subsystems for a doubly holographic model
Aranya Bhattacharya, Arpan Bhattacharyya, Pratik Nandy +1
We study the entanglement islands and subsystem volume complexity corresponding to the left/ right entanglement of a conformal defect in -dimensions in Randall-Sundrum (RS) bran…
Shadow analysis for rotating black holes in the presence of plasma for an expanding universe
Abhishek Chowdhuri, Arpan Bhattacharyya
We explore the structure of shadow for a Kerr-de Sitter black hole with a non-magnetized, pressureless plasma surrounding it. Specific plasma distributions are considered to separa…
Scalar perturbations of black holes in Jackiw-Teitelboim gravity
Srijit Bhattacharjee, Subhodeep Sarkar, Arpan Bhattacharyya
We study linear scalar perturbations of black holes in two-dimensional (2D) gravity models with a particular emphasis on Jackiw-Teitelboim (JT) gravity. We obtain an exact expressi…
Complexity from the Reduced Density Matrix: a new Diagnostic for Chaos
Arpan Bhattacharyya, S. Shajidul Haque, Eugene H. Kim
We investigate circuit complexity to characterize chaos in multiparticle quantum systems. In the process, we take a stride to analyze open quantum systems by using complexity. We p…