On classical properties of thermal squeezed states

A. Mann, M. Revzen, H. Umezawa, Yoshiya Yamanaka

研究成果: Article

4 引用 (Scopus)

抄録

The authors use the formalism of thermo field dynamics and the classical Cramer's theorem to show that if two quantum systems are prepared independently and their centre of mass is found to be a thermal squeezed state, then both systems were prepared in thermal squeezed states. This constitutes an alternative derivation of the quantum version of Cramer's theorem. Further, they consider the case of two systems that are prepared independently and their centre of mass is in a pure state in the expanded space of thermo field dynamics. In this case it is shown that the system is also separable in the centre of mass and relative coordinates, and again all the states involved are thermal squeezed states.

元の言語English
記事番号016
ページ(範囲)4527-4533
ページ数7
ジャーナルJournal of Physics A: Mathematical and General
24
発行部数19
DOI
出版物ステータスPublished - 1991
外部発表Yes

Fingerprint

Squeezed States
Barycentre
center of mass
theorems
Relative coordinates
Pure State
Theorem
Quantum Systems
derivation
formalism
Alternatives
Hot Temperature

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Physics and Astronomy(all)
  • Mathematical Physics

これを引用

On classical properties of thermal squeezed states. / Mann, A.; Revzen, M.; Umezawa, H.; Yamanaka, Yoshiya.

:: Journal of Physics A: Mathematical and General, 巻 24, 番号 19, 016, 1991, p. 4527-4533.

研究成果: Article

Mann, A. ; Revzen, M. ; Umezawa, H. ; Yamanaka, Yoshiya. / On classical properties of thermal squeezed states. :: Journal of Physics A: Mathematical and General. 1991 ; 巻 24, 番号 19. pp. 4527-4533.
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