Spin relaxation in terms of thermo field
โ
T. Tominaga; M. Ban; T. Arimitsu; J. Pradko; H. Umezawa
๐
Article
๐
1988
๐
Elsevier Science
๐
English
โ 899 KB
An axiomatic formulation of the therm0 field dynamics (TFD) for spin systems is performed. and is applied to the relaxation process of single spin-1. The spin relaxation accompanied with a change of symmetry of the system is also investigated. The time evolution of an order parameter is obtained wi