Energy of the nearest neighbor RVB state by systematic loop expansion

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dc.creatorEder, Robert
dc.date1998-01-22
dc.date1998-01-26
dc.date.accessioned2026-07-07T03:09:50Z
dc.date.available2026-07-07T03:09:50Z
dc.descriptionWe present an approximation scheme for the calculation of the norm and energy of the nearest-neighbor-RVB state for the Heisenberg antiferromagnet on the 2D square lattice. The approximation leads to a systematic expansion of norm and energy, with the `expansion parameter' being the maximum length of loops taken into account in the calculation of energy and norm. The expansion converges well, the best estimate for the ground state energy/site is $-0.434473J$.
dc.descriptionRevTex-file, 4 PRB pages with 2 eps files
dc.identifierhttps://arxiv.org/abs/cond-mat/9801234
dc.identifierhttp://arxiv.org/abs/cond-mat/9801234
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/28043
dc.subjectStrongly Correlated Electrons
dc.titleEnergy of the nearest neighbor RVB state by systematic loop expansion
dc.typetext

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