Dephasing from electron fractionalization

Details Dephasing from electron fractionalization Dephasing from electron fractionalization

2005-03-28

arxiv.org/abs/cond-mat/0503652v3

Phys. Rev. Lett. 95, 076801 (2005)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Final version to appear in Physical Review Letters

Scientific paper

10.1103/PhysRevLett.95.076801

We investigate the dephasing of mesoscopic interferences by electron-electron interactions in a strictly one-dimensional geometry composed of two weakly-coupled (clean and very long) Luttinger liquids. The main goal of this paper is to demonstrate that interactions in one dimension can produce a visible attenuation of Aharonov-Bohm oscillations. Through a Nyquist noise type description of the interactions and a direct (exact) calculation based on the Luttinger theory, in our setup we firmly emphasize that the dephasing time results from the electron fractionalization time.

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