1/N-Expansion and the Dilute Bose Gas Beyond Mean-field Theory

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dc.creatorAndersen, Jens O.
dc.date2006-08-11
dc.date.accessioned2026-07-07T07:19:38Z
dc.date.available2026-07-07T07:19:38Z
dc.descriptionWe consider the nonrelativistic interacting Bose gas at zero and finite temperature. Using the 1/N-expansion, we derive expressions for the free energy density and the number density to next-to-leading order in 1/N. Outside the critical region and at weak coupling, our calculations reduce to the well-known mean-field results for the dilute Bose gas. We also rederive the nonperturbative critical density for Bose condensation which was first calculated by Baym, Blaizot, Holzmann, Lalöe, and Vautherin.
dc.description6 pages, 3 figs
dc.identifierhttps://arxiv.org/abs/cond-mat/0608265
dc.identifierhttp://arxiv.org/abs/cond-mat/0608265
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/114699
dc.subjectOther Condensed Matter
dc.subjectHigh Energy Physics - Phenomenology
dc.title1/N-Expansion and the Dilute Bose Gas Beyond Mean-field Theory
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