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About the c‐Number Approximation of the Macroscopical Boson Degrees of Freedom within a Solvable Model
Author(s) -
Bányai L.
Publication year - 2002
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/1521-3951(200211)234:1<14::aid-pssb14>3.0.co;2-b
Subject(s) - boson , degrees of freedom (physics and chemistry) , limit (mathematics) , mathematical physics , mathematics , interacting boson model , thermodynamic limit , physics , statistical physics , quantum mechanics , mathematical analysis
We show on a solvable model in equilibrium and non‐equilibrium, that in the thermodynamic limit the c‐number approximation of the macroscopically occupied lowest state is exact for all averages of products of these operators.