Low-temperature transport of correlated electrons

Details Low-temperature transport of correlated electrons Low-temperature transport of correlated electrons

1995-04-11

arxiv.org/abs/cond-mat/9504040v1

unpublished (but see 9509150)

Physics

Condensed Matter

Four (4) pages RevTeX

Scientific paper

Transport properties of a single-channel Luttinger liquid impinging on a barrier have been studied for $g=1/2 - \epsilon$, where $g$ is the dimensionless interaction constant and $|\epsilon| \ll 1$. The relevant diagrams contributing to the conductance are identified and evaluated in all orders. Our approach represents a leading-log summation which is valid for sufficiently low temperature and small voltage. The asymptotic low-temperature corrections exhibit a turnover from the $T^{2/g-2}$ behavior to a universal $T^2$ law as the voltage is increased.

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