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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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|---|---|---|---|---|
| Non-equilibrium quantum Langevin dynamics of orbital diamagnetic moment.pdf Restricted Access | Restricted Access | 1.01 MB | Adobe PDF | View/Open Request a copy |
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