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简并能级(英语:Degenerate energy level)在物理学中,简并是指被当作同一较粗糙物理状态的两个或多个不同的较精细物理状态。[1]:p. 48


统计物理学中,宏观上由压强体积温度确定的同一宏观热力学状态,在微观上可以对应大量不同的微观状态,该热力学状态是这些微观状态的简并态。简并在量子力学和统计物理中的意义不同,在统计物理中,简并是指量子效应明显的体系。[2]:p. 52[3]




  1. ^ Merzbacher, Eugen. Quantum Mechanics 3rd. New York: John Wiley. 1998. ISBN 0471887021. 
  2. ^ Levine, Ira N. Quantum Chemistry 4th. Prentice Hall. 1991: 52. ISBN 0-205-12770-3. 
  3. ^ Messiah, Albert. Quantum mechanics 3rd. Amsterdam, NLD: North-Holland. 1967: 98–106. ISBN 0471887021. 
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