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Proceedings Paper

Gibbs distribution over quasi-energy levels and antiferroelectric phase in thermal gases
Author(s): V. V. Kocharovsky; Vl. V. Kocharovsky; V. A. Kukushkin
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Paper Abstract

Generalization of Gibbs distribution over the quasienergy states of moving molecules is successfully used to describe the thermodynamic properties of antiferroelectric phase transition in an ideal (collisionless) gas of two-level molecules. According to the method, there appears a self- consistent stationary polarization wave which is well agreed with that predicted on the basis of straightforward solution of the optical Bloch kinetic equations. It is found that a novel phase of gaseous crystal of the antiferroelectric type will emerge as a result of weak first order phase transition. Basic thermodynamic properties of this antiferroelectric phase transition are outlined and some estimates for possible experiments in real gases are presented.

Paper Details

Date Published: 26 September 1997
PDF: 7 pages
Proc. SPIE 3239, Photon Echo and Coherent Spectroscopy, (26 September 1997); doi: 10.1117/12.287684
Show Author Affiliations
V. V. Kocharovsky, Institute of Applied Physics (Russia)
Vl. V. Kocharovsky, Institute of Applied Physics (Russia)
V. A. Kukushkin, Institute of Applied Physics (Russia)

Published in SPIE Proceedings Vol. 3239:
Photon Echo and Coherent Spectroscopy
Vitaly V. Samartsev, Editor(s)

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