Transport in an inhomogeneous interacting one--dimensional system

Details Transport in an inhomogeneous interacting one--dimensional system Transport in an inhomogeneous interacting one--dimensional system

1995-05-18

arxiv.org/abs/cond-mat/9505079v1

Phys. Rev. B 52, R17040 (1995)

Physics

Condensed Matter

11 pages, RevTeX 3.0, 1 postscript figure, everything in a uuencoded file

Scientific paper

10.1103/PhysRevB.52.R17040

Transport through a one--dimensional wire of interacting electrons connected to semi--infinite leads is investigated using a bosonization approach. An incident electron is transmitted as a sequence of partial charges. The dc conductance is found to be entirely determined by the properties of the leads. The dynamic nonlocal conductivity is rigorously expressed in terms of the transmission. For abrupt variations of the interaction parameters at the junctions the central wire acts as a Fabry--Perot resonator. When one of the connected wires has a tendency towards superconducting order, partial Andreev reflection of an incident electron occurs.

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