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检索条件"主题词=generalized Feynman-Hellmann theorem"
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Deriving Internal Energy by Virtue of generalized feynman-hellmann theorem for Mixed States
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Communications in Theoretical Physics 2005年 第6X期44卷 1041-1044页
作者: FAN Hong-Yi JIANG Zhong-Hua Department of Physics Shanghai Jiao Tong University Shanghai 200030 China Department of Materials Science and Engineering University of Science and Technology of China Hefei 230026 China Special Class for Gifted Young University of Science and Technology of China Hefei 230026 China
We show how to directly use the generalized feynman-hellmann theorem, which is suitable for mixed state ensemble average, to derive the internal energy of Hamiltonian systems. A concrete example, which is a two couple... 详细信息
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