The equilibrium short-time density matri
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K.V. Ermakov; B.S. Butayev; V.P. Spiridonov
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Article
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1987
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Elsevier Science
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English
⚖ 277 KB
A simple closed formula is proposed for the short-time density matrix of a one-dimensional anharmonic oscihator in thermal equilibrium. The formula can be used in an iterative numerical calculation of the equilibrium density matrix at a given temperature starting from the density matrix at a higher