The relation between Feynman cycles and off-diagonal long-range order

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dc.creatorUeltschi, Daniel
dc.date2006-03-31
dc.date2006-08-23
dc.date.accessioned2026-07-07T07:05:09Z
dc.date.available2026-07-07T07:05:09Z
dc.descriptionThe usual order parameter for the Bose-Einstein condensation involves the off-diagonal correlation function of Penrose and Onsager, but an alternative is Feynman's notion of infinite cycles. We present a formula that relates both order parameters. We discuss its validity with the help of rigorous results and heuristic arguments. The conclusion is that infinite cycles do not always represent the Bose condensate.
dc.description5 pages
dc.identifierhttps://arxiv.org/abs/cond-mat/0604005
dc.identifierhttp://arxiv.org/abs/cond-mat/0604005
dc.identifierPhys. Rev. Lett. 97, 170601 (2006)
dc.identifierdoi:10.1103/PhysRevLett.97.170601
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/109576
dc.subjectStatistical Mechanics
dc.subjectMathematical Physics
dc.titleThe relation between Feynman cycles and off-diagonal long-range order
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