Effective Field Theory for Goldstone Bosons in Nonrelativistic Superfluids

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dc.creatorAndersen, Jens O.
dc.date2002-09-10
dc.date.accessioned2026-07-07T02:47:13Z
dc.date.available2026-07-07T02:47:13Z
dc.descriptionWe consider nonrelativistic superfluids where the global U(1)-symmetry is spontaneously broken. At sufficiently long wavelengths, the relevant degree of freedom is the massless Goldstone mode and we construct an effective low energy theory for the Goldstone boson. The damping rate of collective excitations at low energy is calculated. In the case of a weakly interacting Bose gas, we recover the results by Beliaev, and by Hohenberg and Martin.
dc.description4 pages, 1 figure, revtex
dc.identifierhttps://arxiv.org/abs/cond-mat/0209243
dc.identifierhttp://arxiv.org/abs/cond-mat/0209243
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/19930
dc.subjectCondensed Matter
dc.subjectHigh Energy Physics - Phenomenology
dc.titleEffective Field Theory for Goldstone Bosons in Nonrelativistic Superfluids
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