Weak-coupling limits of the quantum Langevin equation for an oscillator
| dc.contributor.author | Ghosh A.; Dattagupta S. | en_US |
| dc.date.accessioned | 2025-02-17T11:09:54Z | |
| dc.date.issued | 2024 | |
| dc.description.abstract | The quantum Langevin equation as obtained from the independent-oscillator model describes a strong-coupling situation, devoid of the Born�Markov approximation that is employed in the context of the Gorini�Kossakowski�Sudarshan�Lindblad equation. The question we address is what happens when we implement such �Born�Markov�-like approximations at the level of the quantum Langevin equation for a harmonic oscillator which carries a noise term satisfying a fluctuation�dissipation theorem. In this backdrop, we also comment on the rotating-wave approximation. � 2024 Elsevier B.V. | en_US |
| dc.identifier.citation | 0 | en_US |
| dc.identifier.uri | http://dx.doi.org/10.1016/j.physa.2024.129926 | |
| dc.identifier.uri | https://idr.iitbbs.ac.in/handle/2008/4999 | |
| dc.language.iso | en | en_US |
| dc.subject | Born�Markov approximation; Non-Markovian effects; Quantum dissipation; Quantum Langevin equation; Steady state; Weak-coupling limit | en_US |
| dc.title | Weak-coupling limits of the quantum Langevin equation for an oscillator | en_US |
| dc.type | Article | en_US |