[HTML][HTML] Circuit complexity from cosmological islands

S Choudhury, S Chowdhury, N Gupta, A Mishara… - Symmetry, 2021‏ - mdpi.com
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 …

Quantum aspects of chaos and complexity from bouncing cosmology: A study with two-mode single field squeezed state formalism

P Bhargava, S Choudhury, S Chowdhury… - SciPost Physics …, 2021‏ - scipost.org
Abstract $ Circuit~ Complexity $, a well known computational technique has recently
become the backbone of the physics community to probe the chaotic behaviour and random …

[HTML][HTML] : THE COSMOLOGICAL OTOC: Formulating New Cosmological Micro-Canonical Correlation Functions for Random Chaotic Fluctuations in Out-Of-Equilibrium …

S Choudhury - Symmetry, 2020‏ - mdpi.com
The out-of-time-ordered correlation (OTOC) function is an important new probe in quantum
field theory which is treated as a significant measure of random quantum correlations. In this …

Open Quantum Entanglement: A study of two atomic system in static patch of de Sitter space

S Akhtar, S Choudhury, S Chowdhury… - The European Physical …, 2020‏ - Springer
In this work, our prime objective is to study non-locality and long range effect of two body
correlation using quantum entanglement from various information theoretic measure in the …

The generalized OTOC from supersymmetric quantum mechanics—study of random fluctuations from eigenstate representation of correlation functions

KY Bhagat, B Bose, S Choudhury, S Chowdhury… - Symmetry, 2020‏ - mdpi.com
The concept of the out-of-time-ordered correlation (OTOC) function is treated as a very
strong theoretical probe of quantum randomness, using which one can study both chaotic …

The cosmological OTOC: A new proposal for quantifying auto-correlated random non-chaotic primordial fluctuations

S Choudhury - Symmetry, 2021‏ - mdpi.com
The underlying physical concept of computing out-of-time-ordered correlation (OTOC) is a
significant new tool within the framework of quantum field theory, which now-a-days is …

Cosmological Geometric Phase From Pure Quantum States: A Study without/with having Bell's Inequality Violation

S Choudhury - arxiv preprint arxiv:2105.06254, 2021‏ - arxiv.org
In this paper, using the concept of Lewis Riesenfeld invariant quantum operator method for
finding continuous eigenvalues of quantum mechanical wave functions we derive the …

C \calC osmological G \calG eometric P \calP hase F \calF rom P \calP ure Q \calQ uantum S \calS tates: A Study without/with having Bell's Inequality Violation

S Choudhury - Fortschritte der Physik, 2022‏ - Wiley Online Library
In this paper, using the concept of Lewis Riesenfeld invariant quantum operator method for
finding continuous eigenvalues of quantum mechanical wave functions we derive the …

[PDF][PDF] THE GENERALIZED OTOC FROM SUPERSYMMETRIC QUANTUM MECHANICS: Study of Random Fluctuations from Eigenstate Representation of Correlation …

S Choudhury - Preprints, 2020‏ - preprints.org
The concept of out-of-time-ordered correlation (OTOC) function is treated as a very strong
theoretical probe of quantum randomness, using which one can study both chaotic and non …