Spin-charge separation in the two-dimensional Hubbard and t-J models at low electronic density

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dc.contributorVirginia Techen
dc.contributor.authorChen, Y. C.en
dc.contributor.authorMoreo, A.en
dc.contributor.authorOrtolani, F.en
dc.contributor.authorDagotto, E.en
dc.contributor.authorLee, T. K.en
dc.contributor.departmentCenter for Stochastic Processes in Science and Engineering (CSPISE)en
dc.contributor.departmentPhysicsen
dc.date.accessed2014-04-23en
dc.date.accessioned2014-05-07T15:37:07Zen
dc.date.available2014-05-07T15:37:07Zen
dc.date.issued1994-07en
dc.description.abstractThe spin- and density-correlation functions of the two-dimensional Hubbard model at low electronic density [n] are calculated in the ground state by using the power method, and at finite temperatures by using the quantum Monte Carlo technique. Both approaches produce similar results, which are in close agreement with numerical and high-temperature-expansion results for the two-dimensional t-J model. Using perturbative approximations, we show that the examination of the density-correlation function alone is not enough to support recent claims in the literature that suggested spin and charge separation in the low electronic density regime of the t-J model.en
dc.description.sponsorshipNational Science Council of Republic of China, Grant No. NSC83-0511-M007-004en
dc.description.sponsorshipOffice of Naval Research under Grant No. ONRN00014-93-0495en
dc.description.sponsorshipPetroleum Research Fund administered by the American Chemical Societyen
dc.identifier.citationChen, Y. C.; Moreo, A.; Ortolani, F.; Dagotto, E.; Lee, T. K., "Spin-charge separation in the two-dimensional Hubbard and t-J models at low electronic density," Phys. Rev. B 50, 655(R) DOI: http://dx.doi.org/10.1103/PhysRevB.50.655en
dc.identifier.doihttps://doi.org/10.1103/PhysRevB.50.655en
dc.identifier.issn0163-1829en
dc.identifier.urihttp://hdl.handle.net/10919/47891en
dc.identifier.urlhttp://journals.aps.org/prb/abstract/10.1103/PhysRevB.50.655en
dc.language.isoen_USen
dc.publisherAmerican Physical Societyen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectluttinger-liquiden
dc.subjectphase-diagramen
dc.subjectstateen
dc.subjectbehavioren
dc.subjectphysics, condensed matteren
dc.titleSpin-charge separation in the two-dimensional Hubbard and t-J models at low electronic densityen
dc.title.serialPhysical Review Ben
dc.typeArticle - Refereeden

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