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- W1613738963 abstract "It is well known that while forward scattering has no effect on the conductance of one-dimensional systems, backscattering off a static impurity suppresses the current. We study the effect of a time-dependent point impurity on the conductance of a one-channel quantum wire. At strong repulsive interaction (Luttinger liquid parameter g<1/2), backscattering renders the conductance greater than its value e^2/h in the absence of the impurity. A possible experimental realization of our model is a constricted Hall bar at fractional filling factors nu=1/(2n+1) with a time-dependent voltage at the constriction." @default.
- W1613738963 created "2016-06-24" @default.
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- W1613738963 date "2001-04-28" @default.
- W1613738963 modified "2023-09-26" @default.
- W1613738963 title "Can backscattering off an impurity enhance the current?" @default.
- W1613738963 doi "https://doi.org/10.48550/arxiv.cond-mat/0104558" @default.
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