Practical solution to the Monte Carlo sign problem: Realistic calculations of 54Fe

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dc.creatorAlhassid, Y.
dc.creatorDean, D. J.
dc.creatorKoonin, S. E.
dc.creatorLang, G.
dc.creatorOrmand, W. E.
dc.date1993-10-19
dc.date1993-12-22
dc.date.accessioned2026-07-07T11:36:33Z
dc.date.available2026-07-07T11:36:33Z
dc.descriptionWe present a practical solution to the "sign problem" in the auxiliary field Monte Carlo approach to the nuclear shell model. The method is based on extrapolation from a continuous family of problem-free Hamiltonians. To demonstrate the resultant ability to treat large shell-model problems, we present results for 54Fe in the full fp-shell basis using the Brown-Richter interaction. We find the Gamow-Teller beta^+ strength to be quenched by 58% relative to the single-particle estimate, in better agreement with experiment than previous estimates based on truncated bases.
dc.description11 pages + 2 figures (not included)
dc.identifierhttps://arxiv.org/abs/nucl-th/9310026
dc.identifierhttp://arxiv.org/abs/nucl-th/9310026
dc.identifierPhys.Rev.Lett.72:613-616,1994
dc.identifierdoi:10.1103/PhysRevLett.72.613
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/198953
dc.subjectNuclear Theory
dc.subjectHigh Energy Physics - Lattice
dc.titlePractical solution to the Monte Carlo sign problem: Realistic calculations of 54Fe
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