Prog. Theor. Phys. Vol. 85 No. 5 (1991) pp. 939-944

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Letters

Two Types of Schrödinger Time Evolution in the Formalism of Thermo Field Dynamics and Their Equivalence to the Liouville-von Neumann Equation

João da Providência, Masatoshi Yamamura^* and Atsushi Kuriyama^*

Departamento de Fisica, Universidade de Coimbra, P-3000 Coimbra
^*Faculty of Engineering, Kansai University, Suita 564

(Received October 22, 1990)

Abstract:

It is proved that two types of the time-dependent Schrödinger equation in the formalation of thermo field dynamics, which may be regarded as equivalent to the Liouville-von Neumann equation, are connected with each other under a certain unitary transformation in the tilde-space.

URL : http://ptp.ipap.jp/link?PTP/85/939/
DOI : 10.1143/PTP.85.939

References:

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Citing Article(s) :

Progress of Theoretical Physics Vol. 87 No. 1 (1992) pp. 135-149 :
Description of Mixed States Based on the Time-Dependent Hartree-Fock Theory. III

Atsushi Kuriyama, João da Providência and Masatoshi Yamamura
Progress of Theoretical Physics Supplement No.141 (2001) pp. 113-178 :
Time-Evolution of the Coherent and the Squeezed States of Many-Body Systems Based on the Basic Idea of the Boson Mapping and the TDHF Method

Atsushi Kuriyama, João da Providência, Yasuhiko Tsue and Masatoshi Yamamura