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Transport in disordered interacting systems: Numerical results for one-dimensional spinless electrons

Michael Schreiber·Frank Epperlein·Thomas Vojta
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Abstract

The combined influence of disorder and interactions on the transport properties of electrons in one dimension is investigated. The numerical simulations are carried out by means of the Hartree-Fock-based diagonalization (HFD), a very efficient method to determine the low-energy properties of a disordered many-particle system. We find that the conductance of a strongly localized system can become considerably enhanced by the interactions. The enhancement for long-range interactions is significantly larger than for short-range interactions. In contrast, the conductance of weakly localized systems becomes suppressed by the interactions.

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Michael Schreiber, Frank Epperlein, Thomas Vojta. 1998-07-29. Transport in disordered interacting systems: Numerical results for one-dimensional spinless electrons. https://doi.org/10.1016/s0378-4371(98)00628-1

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