Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/7514
Title: Non-equilibrium quantum Langevin dynamics of orbital diamagnetic moment
Authors: Satpathi, Urbashi
Sinha, Supurna
Keywords: quantum dissipative systems
correlation functions
cold atoms
Issue Date: Jun-2019
Publisher: IOP Publishing and SISSA
Citation: Journal of Statistical Mechanics: Theory and Experiment, 2019, Article No:063106
Series/Report no.: Vol.2019;Ar 063106
Abstract: We investigate the time dependent orbital diamagnetic moment of a charged particle in a magnetic field in a viscous medium via the Quantum Langevin Equation. We study how the interplay between the cyclotron frequency and the viscous damping rate governs the dynamics of the orbital magnetic moment in the high temperature classical domain and the low temperature quantum domain for an Ohmic bath. These predictions can be tested via state of the art cold atom experiments with hybrid traps for ions and neutral atoms. We also study the effect of a confining potential on the dynamics of the magnetic moment. We obtain the expected Bohr Van Leeuwen limit in the high temperature, asymptotic time (γt⟶∞, where γ is the viscous damping coefficient) limit.
Description: Restricted Access. An open-access version is available at arXiv.org (one of the alternative locations)
URI: http://hdl.handle.net/2289/7514
ISSN: 1742-5468
Alternative Location: https://iopscience.iop.org/article/10.1088/1742-5468/ab1dda
10.1088/1742-5468/ab1dda
Copyright: 2020 IOP Publishing and SISSA
Appears in Collections:Research Papers (TP)

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