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Event Number 3597

  Wednesday, February 18th, 2015

R. G. Herb Condensed Matter Seminar
Faculty Candidate Seminar
Spin-charge scattering in Luttinger Liquids
Time: 4:00 pm
Place: 4274 Chamberlin Hall
Speaker: Alex Levchenko
Abstract: I will discuss the violation of spin-charge separation in generic Luttinger liquids and investigate its effect on the relaxation, thermal and electrical transport of genuine spin-1/2 electron liquids in ballistic quantum wires. We will identify basic scattering processes compatible with the symmetry of the problem and conservation laws that lead to the decay of plasmons into the spin modes and also discuss Brownian backscattering of spin excitations. I will present a closed set of coupled kinetic equations for the spin-charge excitations and solve the problem of electrical and thermal conductance of interacting electrons for an arbitrary relation between the quantum wire length and spin-charge thermalization length.
Host: Coppersmith
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