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Nonzero temperature variational principle
Author(s) -
Pokrant M. A.,
Broyles A. A.,
Coldwell R. L.
Publication year - 2009
Publication title -
international journal of quantum chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.484
H-Index - 105
eISSN - 1097-461X
pISSN - 0020-7608
DOI - 10.1002/qua.560080843
Subject(s) - hamiltonian (control theory) , variational principle , variational method , wave function , ground state , quantum mechanics , quantum , physics , mathematical physics , mathematics , mathematical optimization
A variational principle to obtain the Slater sum for quantum fluids is proposed. It is valid at all temperatures. At T = 0 it is equivalent to the ground‐state variational principle which minimizes the expectation value of the Hamiltonian with respect to variations of the wave function.