Effect of connecting wires on the decoherence due to electron-electron interaction in a metallic ring

Details Effect of connecting wires on the decoherence due to electron-electron interaction in a metallic ring Effect of connecting wires on the decoherence due to electron-electron interaction in a metallic ring

2007-07-19

arxiv.org/abs/0707.2916v1

Phys. Rev. B 76, 153312 (2007)

Physics

Condensed Matter

Disordered Systems and Neural Networks

LaTeX, 4 pages, 4 eps figures

Scientific paper

10.1103/PhysRevB.76.153312

We consider the weak localization in a ring connected to reservoirs through leads of finite length and submitted to a magnetic field. The effect of decoherence due to electron-electron interaction on the harmonics of AAS oscillations is studied, and more specifically the effect of the leads. Two results are obtained for short and long leads regimes. The scale at which the crossover occurs is discussed. The long leads regime is shown to be more realistic experimentally.

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