Superfluid density and the Drude weight of the Hubbard model

We study the superfluid density and the Drude weight of the Hubbard model by investigating two different limiting behaviors of the current-current correlation function. These quantities provide criteria which allow one to distinguish between superconducting, metallic, and insulating ground states of...

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Bibliographic Details
Published in:	Physical review letters Vol. 68; no. 18; pp. 2830 - 2833
Main Authors:	SCALAPINO, D. J, WHITE, S. R, ZHANG, S. C
Format:	Journal Article
Language:	English
Published:	Ridge, NY American Physical Society 04-05-1992
Subjects:	665000 - Physics of Condensed Matter- (1992-) 665411 - Basic Superconductivity Studies- (1992-) CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY Condensed matter: electronic structure, electrical, magnetic, and optical properties ELECTRIC CONDUCTIVITY ELECTRICAL PROPERTIES ELECTRON-ELECTRON INTERACTIONS ENERGY LEVELS Exact sciences and technology GROUND STATES INTERACTIONS LEPTON-LEPTON INTERACTIONS MANY-BODY PROBLEM MATHEMATICAL MODELS MONTE CARLO METHOD PARTICLE INTERACTIONS PHYSICAL PROPERTIES Physics SUPERCONDUCTIVITY SUPERFLUIDITY Theory and models of superconducting state Monte Carlo method Attraction interaction Superconductivity Theoretical study Hubbard model Numerical simulation Two dimensional model Superfluidity Repulsion interaction
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