Quantum thermodynamics of a charged magneto-oscillator coupled to a heat bath

Details Quantum thermodynamics of a charged magneto-oscillator coupled to a heat bath Quantum thermodynamics of a charged magneto-oscillator coupled to a heat bath

2009-06-07

arxiv.org/abs/0906.1332v1

J. Stat. Mech. (2009) 05002

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

26 Pages, 18 Figures

Scientific paper

Explicit results for various quantum thermodynamic function (QTF) of a charged magneto-oscillator coupled to a heat bath at arbitrary temperature are demonstrated in this paper. Discernible expressions for different QTF in the two limits of very low and very high temperatures are presented for three popular heat bath models : Ohmic, single relaxation time and blackbody radiation. The central result is that the effect of magnetic field turns out to be important at low temperatures yet crucial at high temperatures. It is observed that the dissipation parameter, $\gamma$, and the cyclotron frequency, $\omega_c$, affect the decaying or rising behaviour of various QTF in just the opposite way to each other at low temperatures. In the high temperature regime, the effect of $\gamma$ is much pronounced than that of $\omega_c$.

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