Variational bound for the energy of two-dimensional quantum antiferromagnet

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dc.creatorOvchinnikov, A. A.
dc.date1993-08-01
dc.date.accessioned2026-07-07T03:06:54Z
dc.date.available2026-07-07T03:06:54Z
dc.descriptionWe obtain the variational upper bound for the ground- state energy of two-dimensional antiferromagnetic Heisenberg model on a square lattice at arbitrary value of the anisotropy parameter using the two-dimensional generalization of Jordan-Wigner transformation. Our result can be considered as an upper bound for the perturbation theory series about the Ising limit.
dc.description7 pages, LaTex, JETP Letters (Pisma v ZhETF) 57 (1993) 796-800
dc.identifierhttps://arxiv.org/abs/cond-mat/9307067
dc.identifierhttp://arxiv.org/abs/cond-mat/9307067
dc.identifierPisma Zh.Eksp.Teor.Fiz. 57 (1993) 796-800
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/26987
dc.subjectCondensed Matter
dc.titleVariational bound for the energy of two-dimensional quantum antiferromagnet
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