Can Majorana Fermions correctly describe the ordered state of an antiferromagnetic Heisenberg chain?

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dc.creatorFoerster, D.
dc.date1997-01-14
dc.date.accessioned2026-07-07T09:11:27Z
dc.date.available2026-07-07T09:11:27Z
dc.descriptionTo check the reliability of the Majorana representation of quantum spin systems, we use it to compute the ground state energy of an antiferromagnetic spin 1/2 chain to one loop order. We find a very small one loop correction of the mean field energy and a discrepancy of >100% compared to the Bethe Ansatz result. We conclude that a careful handling of the gauge degrees of freedom of this representation is crucial to get correct results.
dc.description6 pages, Revtex, no figures
dc.identifierhttps://arxiv.org/abs/cond-mat/9701093
dc.identifierhttp://arxiv.org/abs/cond-mat/9701093
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/151684
dc.subjectStrongly Correlated Electrons
dc.titleCan Majorana Fermions correctly describe the ordered state of an antiferromagnetic Heisenberg chain?
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