Low-temperature nonequilibrium transport in a Luttinger liquid

Details Low-temperature nonequilibrium transport in a Luttinger liquid Low-temperature nonequilibrium transport in a Luttinger liquid

1995-09-25

arxiv.org/abs/cond-mat/9509150v1

Phys. Rev. B 52, 16707 (1995).

Physics

Condensed Matter

13 pages RevTeX 3.0, accepted by Physical Review B

Scientific paper

10.1103/PhysRevB.52.16707

The temperature-dependent nonlinear conductance for transport of a Luttinger liquid through a barrier is calculated in the nonperturbative regime for $g=1/2-\epsilon$, where $g$ is the dimensionless interaction constant. To describe the low-energy behavior, we perform a leading-log summation of all diagrams contributing to the conductance which is valid for $|\epsilon| << 1$. With increasing external voltage, the asymptotic low-temperature behavior displays a turnover from the $T^{2/g-2}$ to a universal $T^2$ law.

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