Reduced density matrices of a system of N coupled oscillators 2. eigenstructure of the 1-particle matrix for the canonical ensemble |
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| Authors: | S PruskiJ Ma?kowiak O Missuno |
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| Institution: | Institute of Physics, Nicholas Copernicus University, Toruń, Poland |
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| Abstract: | The following theorem is proved: The reduced 1-particle density matrix corresponding to an equilibrium state of a system of N coupled oscillators coincides with the density matrix of a canonical ensemble of free oscillators at some effective temperature. |
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