Systematic scaling in the low-energy excitations of the t-J model in one and two dimensions

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dc.contributorVirginia Techen
dc.contributor.authorEder, R.en
dc.contributor.authorChen, Y. C.en
dc.contributor.authorLin, H. Q.en
dc.contributor.authorOhta, Y.en
dc.contributor.authorShih, C. T.en
dc.contributor.authorLee, T. K.en
dc.contributor.departmentPhysicsen
dc.date.accessed2013-12-18en
dc.date.accessioned2014-02-11T13:46:03Zen
dc.date.available2014-02-11T13:46:03Zen
dc.date.issued1997-05-01en
dc.description.abstractWe present an exact diagonalization study of the low-energy singlet and triplet states for both the one-dimensional (1D) and 2D t-J models. A scan of the parameter ratio J/t shows that for most low-energy states in both 1D and 2D the excitation energy takes the form E(t,J)=a . t+b . J. In 1D this is the natural conse quence of the factorization of the low-energy wave functions, i.e., spin-charge separation. Examination of the low-energy eigenstates in 2D shows that most of these are collective modes, which for larger J correspond to a periodic modulation of the hole density. The modulation is well reproduced by treating holes as hard-core bosons with an attractive interaction.en
dc.identifier.citationEder, R ; Chen, YC ; Lin, HQ ; et al., May 1, 1997. "Systematic scaling in the low-energy excitations of the t-J model in one and two dimensions," PHYSICAL REVIEW B 55(18): 12313-12317. DOI: 10.1103/PhysRevB.55.12313en
dc.identifier.doihttps://doi.org/10.1103/PhysRevB.55.12313en
dc.identifier.issn0163-1829en
dc.identifier.urihttp://hdl.handle.net/10919/25421en
dc.identifier.urlhttp://link.aps.org/doi/10.1103/PhysRevB.55.12313en
dc.language.isoen_USen
dc.publisherAmerican Physical Societyen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectcharge dynamicsen
dc.subjecthubbard-modelen
dc.subjectphase-diagramen
dc.subjectspinen
dc.subjectseparationen
dc.subjectstateen
dc.subjectPhysicsen
dc.titleSystematic scaling in the low-energy excitations of the t-J model in one and two dimensionsen
dc.title.serialPhysical Review Ben
dc.typeArticle - Refereeden

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