Volume 90, Number 3, May 2010
|Number of page(s)||5|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||01 June 2010|
Bosonization out of equilibrium
Institut für Theorie der kondensierten Materie, Universität Karlsruhe - 76128 Karlsruhe, Germany, EU
2 DFG Center for Functional Nanostructures, Universität Karlsruhe - 76128 Karlsruhe, Germany, EU
3 Department of Condensed Matter Physics, Weizmann Institute of Science - Rehovot 76100, Israel
4 Institut für Nanotechnologie, Forschungszentrum Karlsruhe - 76021 Karlsruhe, Germany, EU
5 Petersburg Nuclear Physics Institute - 188300 St. Petersburg, Russia
Corresponding author: firstname.lastname@example.org
Accepted: 16 April 2010
We develop a bosonization technique for one-dimensional fermions out of equilibrium. The approach is used to study a quantum wire attached to two electrodes with arbitrary energy distributions. The non-equilibrium electron Green function is expressed in terms of functional determinants of a single-particle“counting” operator with a time-dependent scattering phase. The result reveals an intrinsic relation of dephasing and energy redistribution in Luttinger-liquids to “fractionalization” of electron-hole excitations in the tunneling process and at boundaries with leads.
PACS: 73.23.-b – Electronic transport in mesoscopic systems / 73.40.Gk – Tunneling / 73.50.Td – Noise processes and phenomena
© EPLA, 2010
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