Interacting bosons in a triple well: Preface of many-body quantum chaos

K Wittmann W, ER Castro, A Foerster, LF Santos - Physical Review E, 2022 - APS
Systems of interacting bosons in triple-well potentials are of significant theoretical and
experimental interest. They are explored in contexts that range from quantum phase …

Information theoretic measures for interacting bosons in optical lattice

R Roy, B Chakrabarti, ND Chavda, ML Lekala - Physical Review E, 2023 - APS
This work reports the different information theoretic measures, ie, Shannon information
entropy, order, disorder, complexity, and their dynamical measure for the interacting bosons …

Quantum-classical correspondence in a triple-well bosonic model: From integrability to chaos

ER Castro, J Chávez-Carlos, I Roditi, A Foerster… - Physical Review A, 2024 - APS
In this work, we investigate the semiclassical limit of a simple bosonic quantum many-body
system exhibiting both integrable and chaotic behavior. A classical Hamiltonian is derived …

One-dimensional quench dynamics in an optical lattice: Sine-Gordon and Bose-Hubbard descriptions

S Roy, R Roy, A Trombettoni, B Chakrabarti, A Gammal - Physical Review A, 2025 - APS
We investigate the dynamics of one-dimensional interacting bosons in an optical lattice after
a sudden quench in the weakly interacting (Bose-Hubbard) and strongly interacting (sine …

Quantum dynamics of few dipolar bosons in a double-well potential

R Roy, B Chakrabarti, A Trombettoni - The European Physical Journal D, 2022 - Springer
We study the few-body dynamics of dipolar bosons in one-dimensional double-wells. By
varying the interaction strength and investigating one-body observables, in the considered …

Strongly interacting bosons in a one-dimensional disordered lattice: Phase coherence of distorted Mott phases

B Chakrabarti, A Gammal, L Salasnich - Physical Review B, 2024 - APS
We explore the consequences of disorder on phase coherence in the Mott insulator phases
in an optical lattice. Few bosons with contact interaction in small optical lattice can feature …

Quantum-information-theoretical measures to distinguish fermionized bosons from noninteracting fermions

B Chakrabarti, A Gammal, ND Chavda, ML Lekala - Physical Review A, 2024 - APS
We study the dynamical fermionization of strongly interacting one-dimensional bosons in
Tonks-Girardeau limit by solving the time-dependent many-boson Schrödinger equation …

Quantum-classical correspondence of a system of interacting bosons in a triple-well potential

ER Castro, J Chávez-Carlos, I Roditi, LF Santos… - Quantum, 2021 - quantum-journal.org
We study the quantum-classical correspondence of an experimentally accessible system of
interacting bosons in a tilted triple-well potential. With the semiclassical analysis, we get a …

Phases and coherence of strongly interacting finite bosonic systems in shallow optical lattice

S Roy, R Roy, A Gammal, B Chakrabarti, B Chatterjee - Annals of Physics, 2024 - Elsevier
We explore the ground states of strongly interacting bosons in the vanishingly small and
weak lattices using the multiconfiguration time-dependent Hartree method for bosons …

Out of equilibrium many-body expansion dynamics of strongly interacting bosons

R Roy, B Chakrabarti, A Gammal - SciPost Physics Core, 2023 - scipost.org
We solve the Schrödinger equation from first principles to investigate the many-body effects
in the expansion dynamics of one-dimensional repulsively interacting bosons released from …