Quantum fluctuation theorem in an interacting setup: point contacts in fractional quantum Hall edge state devices

Details Quantum fluctuation theorem in an interacting setup: point contacts in fractional quantum Hall edge state devices Quantum fluctuation theorem in an interacting setup: point contacts in fractional quantum Hall edge state devices

2011-09-18

arxiv.org/abs/1109.3874v1

Phys. Rev. Lett. 107, 100601 (2011)

Physics

Condensed Matter

Statistical Mechanics

5 pages, 2 figures

Scientific paper

10.1103/PhysRevLett.107.100601

We verify the validity of the Cohen-Gallavotti fluctuation theorem for the strongly correlated problem of charge transfer through an impurity in a chiral Luttinger liquid, which is realizable experimentally as a quantum point contact in a fractional quantum Hall edge state device. This is accomplished via the development of an analytical method to calculate the full counting statistics (FCS) of the problem in all the parameter regimes involving the temperature, the Hall voltage, and the gate voltage.

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