381 citations · 2.8k across the 68 of their papers we have counts for
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Thermalization in Quenched Open Quantum Cosmology
Subhashish Banerjee, Sayantan Choudhury, Satyaki Chowdhury +3
In this article, we study the quantum field theoretic generalization of the Caldeira-Leggett model in general curved space-time considering interactions between two scalar fields i…
Circuit Complexity From Cosmological Islands
Sayantan Choudhury, Satyaki Chowdhury, Nitin Gupta +6
Recently in various theoretical works, path-breaking progress has been made in recovering the well-known Page Curve of an evaporating black hole with Quantum Extremal Islands, prop…
Quantum aspects of chaos and complexity from bouncing cosmology: A study with two-mode single field squeezed state formalism
Parth Bhargava, Sayantan Choudhury, Satyaki Chowdhury +4
, a well known computational technique has recently become the backbone of the physics community to probe the chaotic behaviour and random quantum fluctuations…
Indirect detection of Cosmological Constant from interacting open quantum system
Subhashish Banerjee, Sayantan Choudhury, Satyaki Chowdhury +4
We study the indirect detection of Cosmological Constant from an open quantum system of interacting spins, weakly interacting with a thermal bath, a massless scalar field minimally…
Open Quantum Entanglement: A study of two atomic system in static patch of de Sitter space
Samim Akhtar, Sayantan Choudhury, Satyaki Chowdhury +3
In this work, our prime objective is to study non-locality and long-range effects of two-body correlation using quantum entanglement from the various information-theoretic measures…
Cosmological spectrum of two-point correlation function from vacuum fluctuation of Stringy Axion field in De Sitter space: A study of the role of Quantum Entanglement
Sayantan Choudhury, Sudhakar Panda
In this work, we study the impact of quantum entanglement on the two-point correlation function and the associated primordial power spectrum of mean square vacuum fluctuation in a…