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Please use this identifier to cite or link to this item: https://elib.bsu.by/handle/123456789/14544
Title: Operator method for nonperturbative calculation of the thermodynamic values in quantum statistics: diatomic molecular gas
Authors: Feranchuk, Ilya D.
Ivanov, A. A.
Issue Date: 2004
Publisher: IOP Publishing Ltd
Citation: J. Phys. A: Math. Gen. 37 (2004) 9841–9860
Abstract: Operator method and cumulant expansion are used for nonperturbative calculation of the partition function and the free energy in quantum statistics. It is shown for Boltzmann diatomic molecular gas with some model intermolecular potentials that the zeroth-order approximation of the proposed method interpolates the thermodynamic values with rather good accuracy in the entire range of both the Hamiltonian parameters and temperature. The systematic procedure for calculation of the corrections to the zeroth-order approximation is also considered.
URI: http://elib.bsu.by/handle/123456789/14544
Appears in Collections:Кафедра теоретической физики и астрофизики

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