Dissipative diamagnetism- a case study for equilibrium and nonequilibrium statistical mechanics

Bandyopadhyay, Malay ; Dattagupta, Sushanta (2006) Dissipative diamagnetism- a case study for equilibrium and nonequilibrium statistical mechanics Journal of Statistical Physics, 123 (6). pp. 1273-1284. ISSN 0022-4715

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Official URL: http://www.springerlink.com/content/fr503559q71387...

Related URL: http://dx.doi.org/10.1007/s10955-006-9114-y

Abstract

Using the path integral approach to equilibrium statistical physics the effect of dissipation on Landau diamagnetism is calculated. The calculation clarifies the essential role of the boundary of the container in which the electrons move. Further, the derived result for diamagnetization also matches with the expression obtained from a time-dependent quantum Langevin equation in the asymptotic limit, provided a certain order is maintained in taking limits. This identification then unifies equilibrium and nonequilibrium statistical physics for a phenomenon like diamagnetism, which is inherently quantum and strongly dependent on boundary effects. In addition we have shown that our results are directly connected with fluctuation induced diamagnetic susceptibility of superconducting grains.

Item Type:Article
Source:Copyright of this article belongs to Springer-Verlag.
Keywords:Landau Diamagnetism; Dissipation; Mesoscopic System
ID Code:9167
Deposited On:29 Oct 2010 09:02
Last Modified:08 Feb 2011 07:25

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