Nonequilibrium transport for crossed Luttinger liquids

Details Nonequilibrium transport for crossed Luttinger liquids Nonequilibrium transport for crossed Luttinger liquids

1998-02-11

arxiv.org/abs/cond-mat/9802116v1

Phys. Rev. Lett., 80 (1998) 2881

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages REVTeX, incl. two figures, to appear in Phys.Rev.Lett

Scientific paper

10.1103/PhysRevLett.80.2881

Transport through two one-dimensional interacting metals (Luttinger liquids) coupled together at a single point is analyzed. The dominant coupling mechanism is shown to be of electrostatic nature. Describing the voltage sources by boundary conditions then allows for the full solution of the transport problem. For weak Coulomb interactions, transport is unperturbed by the coupling. In contrast, for strong interactions, unusual nonlinear conductance laws characteristic for the correlated system can be observed.

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