Decoherence and relaxation of a single electron in a one dimensional conductor
arXiv:1609.03494 · doi:10.1103/PhysRevB.94.115311
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 Luttinger liquids paradigm.
24 pages, 6 figures To be published in Physical Review B
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- Levitons in helical liquids with Rashba spin-orbit coupling probed by a superconducting contact
- Single-particle shot noise at non-zero temperature
- Influence of channel mixing in fermionic Hong-Ou-Mandel experiments
- Time-resolved measurement of ambipolar edge magnetoplasmon transport in InAs/InGaSb composite quantum wells
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- Real-Time Ramsey Interferometry in Fractional Quantum Hall States
- Periodic source of energy-entangled electrons in helical states coupled to a BCS superconductor