Solution of a two-leg spin ladder system

dc.contributor.author	Links, Jon	pt_BR
dc.contributor.author	Foerster, Angela	pt_BR
dc.date.accessioned	2014-09-26T02:10:49Z	pt_BR
dc.date.issued	2000	pt_BR
dc.identifier.issn	1098-0121	pt_BR
dc.identifier.uri	http://hdl.handle.net/10183/103842	pt_BR
dc.description.abstract	A model for a spin-1/2 ladder system with two legs is introduced. It is demonstrated that this model is solvable via the Bethe ansatz method for arbitrary values of the rung coupling J. This is achieved by a suitable mapping from the Hubbard model with appropriate twisted boundary conditions. We determine that a phase transition between gapped and gapless spin excitations occurs at the critical value Jc=1/2 of the rung coupling.	en
dc.format.mimetype	application/pdf	pt_BR
dc.language.iso	eng	pt_BR
dc.relation.ispartof	Physical review. B, Condensed matter and materials physics. Melville. Vol. 62, no. 1 (July 2000), p. 65-68	pt_BR
dc.rights	Open Access	en
dc.subject	Sistemas de spin	pt_BR
dc.subject	Modelo de hubbard	pt_BR
dc.subject	Transformações de fase	pt_BR
dc.subject	Equacao de bethe ansatz	pt_BR
dc.title	Solution of a two-leg spin ladder system	pt_BR
dc.type	Artigo de periódico	pt_BR
dc.identifier.nrb	000277188	pt_BR
dc.type.origin	Estrangeiro	pt_BR

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