Spin relaxation in terms of thermo field dynamics

An axiomatic formulation of the thermo field dynamics (TFD) for spin systems is performed, and is applied to the relaxation process of single spin-12. The spin relaxation accompanied with a change of symmetry of the system is also investigated. The time evolution of an order parameter is obtained within the semi-free approximation.

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Year of publication:	1988
Authors:	Tominaga, T. ; Ban, M. ; Arimitsu, T. ; Pradko, J. ; Umezawa, H.
Published in:	Physica A: Statistical Mechanics and its Applications. - Elsevier, ISSN 0378-4371. - Vol. 149.1988, 1, p. 26-48
Publisher:	Elsevier

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

Persistent link: https://www.econbiz.de/10010586505