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dc.contributorVirginia Tech
dc.contributor.authorChen, Y. C.
dc.contributor.authorMoreo, A.
dc.contributor.authorOrtolani, F.
dc.contributor.authorDagotto, E.
dc.contributor.authorLee, T. K.
dc.date.accessioned2014-05-07T15:37:07Z
dc.date.available2014-05-07T15:37:07Z
dc.date.issued1994-07
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.50.655
dc.identifier.issn0163-1829
dc.identifier.urihttp://hdl.handle.net/10919/47891
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.
dc.description.sponsorshipNational Science Council of Republic of China, Grant No. NSC83-0511-M007-004
dc.description.sponsorshipOffice of Naval Research under Grant No. ONRN00014-93-0495
dc.description.sponsorshipPetroleum Research Fund administered by the American Chemical Society
dc.language.isoen_US
dc.publisherAmerican Physical Society
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectluttinger-liquid
dc.subjectphase-diagram
dc.subjectstate
dc.subjectbehavior
dc.subjectphysics, condensed matter
dc.titleSpin-charge separation in the two-dimensional Hubbard and t-J models at low electronic density
dc.typeArticle - Refereed
dc.contributor.departmentCenter for Stochastic Processes in Science and Engineering (CSPISE)en_US
dc.contributor.departmentPhysicsen_US
dc.identifier.urlhttp://journals.aps.org/prb/abstract/10.1103/PhysRevB.50.655
dc.date.accessed2014-04-23
dc.title.serialPhysical Review B
dc.identifier.doihttps://doi.org/10.1103/PhysRevB.50.655


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