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

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

1998-07-29

arxiv.org/abs/cond-mat/9807385v1

Physica A 266, 443 (1999)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Invited talk presented at Percolation 98, submitted to Physica A, 8 pages, elsart style, 4 eps figures included

Scientific paper

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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