Physics – Condensed Matter – Soft Condensed Matter
Scientific paper
1998-03-17
Physics
Condensed Matter
Soft Condensed Matter
3 pages (REVTeX), 2 PS figures
Scientific paper
10.1016/S0375-9601(98)00553-2
We propose a systematic way to investigate the low-temperature thermodynamic properties of quantum spin systems subject to the restriction that only a finite number of bosons may occupy a single lattice site. Such a kinematical interaction results in appearance of a temperature dependent chemical potential. Its low-temperature asymptotics is calculated self-consistently using the functional integration technique.
Medvedev Mikhail V.
Popovich L. V.
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