Physics – Condensed Matter – Quantum Gases
Scientific paper
2012-04-18
Physics
Condensed Matter
Quantum Gases
3 pages, no figures
Scientific paper
Approximated formulae for real quasi-momentum and the associated energy
spectrum are presented for one-dimensional Bose gas with weak attractive
contact interactions. On the basis of the energy spectrum, we obtain the
equation of state in the high temperature region, which is found to be the van
der Waals equation without volume correction.
Ichikawa Tsubasa
Tsutsui Izumi
Yonezawa Nobuhiro
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