Quantum brownian motion under rapid periodic forcing

Bandyopadhyay, Malay ; Barma, Mustansir (2009) Quantum brownian motion under rapid periodic forcing Journal of Statistical Mechanics: Theory and Experiment, 2009 (07). pp. 1-11. ISSN 1742-5468

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Official URL: http://iopscience.iop.org/1742-5468/2009/07/P07018

Related URL: http://dx.doi.org/10.1088/1742-5468/2009/07/P07018

Abstract

We study the steady state behavior of a confined quantum Brownian particle subjected to a space dependent, rapidly oscillating time-periodic force. To leading order in the period of driving, the result of the oscillating force is an effective static potential which has a quantum dissipative contribution, VQD, which adds on to the classical result. This is shown using a coherent state representation of bath oscillators. VQD is evaluated exactly in the case of an Ohmic dissipation bath. It is strongest for intermediate values of the damping, where it can have pronounced effects.

Item Type:Article
Source:Copyright of this article belongs to Institute of Physics.
ID Code:1492
Deposited On:05 Oct 2010 12:23
Last Modified:16 May 2016 12:36

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