Exact thermodynamic behaviour of a collective atomic system in an external field

An exact steady-state density operator is obtained for a model describing the collective behaviour of a system of N two-level atoms. The model yields a Fokker-Planck equation which does not satisfy detailed balance. The density operator is further employed to obtain exact analytical expressions for steady-state expectation values of the collective atomic operators both for finite N and in the thermodynamic limit N → ∞.

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Year of publication:	1980
Authors:	Puri, R.R. ; Lawande, S.V.
Published in:	Physica A: Statistical Mechanics and its Applications. - Elsevier, ISSN 0378-4371. - Vol. 101.1980, 2, p. 599-612
Publisher:	Elsevier

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Type of publication:	Article
Source:	RePEc - Research Papers in Economics

Persistent link: https://www.econbiz.de/10011057313