The Coherent-State Representation of the Wigner Distribution Function
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概要
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The relation between the Wigner cistribution function and the P-representation of the density matrix for describing a boson system is investigated. The coherent-state representation of the density matrix is introduced for a Bose particle system. Especially the P-representation of the density matrix describing an ideal boson system in thermal equilibrium is obtained. It can be seen that the distribution function of the complex eigenvalues of the destruction operator is non-negative in this particular case. The coherent-state representation of the Wigner function is then obtained. The coherent-state representation of the components in the decomposition of the Wigner function is also found. The London-Placzek formula can be derived by using one of these components.
- 社団法人日本物理学会の論文
- 1974-01-15
著者
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Kano Yutaka
Department Of Applied Physics And Chemistry University Of Electro-communications
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Kano Yutaka
Department Of Physics College Of General Education Nagoya University
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