Thermodynamics of a Weakly Interacting B
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T. Haugset; H. Haugerud; F. Ravndal
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Article
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1998
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Elsevier Science
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English
⚖ 723 KB
The one-loop effective potential for nonrelativistic bosons with a delta function repulsive potential is calculated for a given chemical potential using functional methods. After renormalization and at zero temperature it reproduces the standard ground state energy and pressure as function of the pa