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Communication Dans Un Congrès Année : 2006

Dephasing due to a fluctuating fractional quantum Hall edge current

Résumé

The dephasing rate of an electron level in a quantum dot, placed next to a fluctuating edge current in the fractional quantum Hall effect, is considered. Using perturbation theory, we first show that this rate has an anomalous dependence on the bias voltage applied to the neighboring quantum point contact, because of the Luttinger liquid physics which describes the fractional Hall fluid. Next, we describe exactly the weak to strong backscattering crossover using the Bethe-Ansatz solution.
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Dates et versions

hal-00141149 , version 1 (11-04-2007)

Identifiants

  • HAL Id : hal-00141149 , version 1

Citer

T.K.T. Nguyen, Adeline Crépieux, Thibaut Jonckheere, A.V. Nguyen, Y. Levinson, et al.. Dephasing due to a fluctuating fractional quantum Hall edge current. Proceedings des 6èmes Rencontres du Vietnam, Aug 2006, Hanoi, Vietnam. ⟨hal-00141149⟩
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