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• W2019997139 endingPage "7659" @default.
• W2019997139 startingPage "7655" @default.
• W2019997139 abstract "We present an exact calculation of the persistent current of electrons with Hubbard interactions in disordered one-dimensional rings. Numerical simulations show that the currents exhibit an interesting dependence on the configuration and strength W of disorder, and the value of the Hubbard interaction U. Our numerical simulations show that disorder and interaction both can monotonically suppress the amplitude of the current. The interaction can sometimes enhance the current of a disordered ring depending on its configuration and degree of disorder, even though smaller than the corresponding ideal-ring value ${mathit{V}}_{mathit{F}}$e/L. We have also studied the effect of negative U, and shown that it can influence the current as the positive U does. Based on the eigenvalue theory of a matrix, we give a simple explanation of the effects of disorder and interaction on currents. The main results are consistent with the numerical results for the case of long-range Coulomb interactions." @default.
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• W2019997139 date "1994-09-15" @default.
• W2019997139 modified "2023-10-18" @default.
• W2019997139 title "Persistent currents of interacting electrons in one-dimensional disordered rings" @default.
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• W2019997139 doi "https://doi.org/10.1103/physrevb.50.7655" @default.
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