Decoherence and relaxation of a single electron in a one-dimensional conductor

Abstract : We study the decoherence and relaxation of a single elementary electronic excitation propagating in a one-dimensional chiral conductor. Using two-particle interferences in the electronic analog of the Hong-Ou-Mandel experiment, we analyze quantitatively the decoherence scenario of a single electron propagating along a quantum Hall edge channel at filling factor 2. The decoherence results from the emergence of collective neutral excitations induced by Coulomb interaction and leading, in one dimension, to the destruction of the elementary quasiparticle. This study establishes the relevance of electron quantum optics setups to provide stringent tests of strong interaction effects in one-dimensional conductors described by the Luttinger liquids paradigm.
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Physical Review B : Condensed matter and materials physics, American Physical Society, 2016, 94, pp.115311 <10.1103/PhysRevB.94.115311>
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https://hal.archives-ouvertes.fr/hal-01399330
Contributeur : Thibaut Jonckheere <>
Soumis le : vendredi 18 novembre 2016 - 16:14:48
Dernière modification le : mercredi 11 janvier 2017 - 16:13:48

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A. Marguerite, C. Cabart, C. Wahl, B. Roussel, V. Freulon, et al.. Decoherence and relaxation of a single electron in a one-dimensional conductor. Physical Review B : Condensed matter and materials physics, American Physical Society, 2016, 94, pp.115311 <10.1103/PhysRevB.94.115311>. <hal-01399330>

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