Yrast line for weakly interacting trapped bosons

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dc.creatorBertsch, George F.
dc.creatorPapenbrock, Thomas
dc.date1999-08-12
dc.date.accessioned2026-07-07T12:33:12Z
dc.date.available2026-07-07T12:33:12Z
dc.descriptionWe compute numerically the yrast line for harmonically trapped boson systems with a weak repulsive contact interaction, studying the transition to a vortex state as the angular momentum L increases and approaches N, the number of bosons. The L=N eigenstate is indeed dominated by particles with unit angular momentum, but the state has other significant components beyond the pure vortex configuration. There is a smooth crossover between low and high L with no indication of a quantum phase transition. Most strikingly, the energy and wave function appear to be analytical functions of L over the entire range 2 < L < N. We confirm the structure of low-L states proposed by Mottelson, as mainly single-particle excitations with two or three units of angular momentum.
dc.description9 pages, 3 EPS-figures, uses psfig.sty
dc.identifierhttps://arxiv.org/abs/cond-mat/9908189
dc.identifierhttp://arxiv.org/abs/cond-mat/9908189
dc.identifierPhys.Rev.Lett.83:5412,1999
dc.identifierdoi:10.1103/PhysRevLett.83.5412
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/217044
dc.subjectCondensed Matter
dc.subjectNuclear Theory
dc.subjectAtomic Physics
dc.titleYrast line for weakly interacting trapped bosons
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