Agarwal, G. S. (1971) Entropy, the Wigner distribution function, and the approach to equilibrium of a system of coupled harmonic oscillators Physical Review A, 3 (2). pp. 828-831. ISSN 1050-2947
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Official URL: http://pra.aps.org/abstract/PRA/v3/i2/p828_1
Related URL: http://dx.doi.org/10.1103/PhysRevA.3.828
Abstract
The entropy is determined of a quantum-mechanical system whose statistical state is characterized by a Wigner distribution function that is Gaussian in form. It is found to depend only on the variance of the distribution function. This enables us to study quantum mechanically the approach to equilibrium of coupled harmonic-oscillator chains, a system for which a classical treatment has been given recently by Robertson and Huerta.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to The American Physical Society. |
| ID Code: | 78888 |
| Deposited On: | 23 Jan 2012 11:21 |
| Last Modified: | 23 Jan 2012 11:21 |
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