Phase sensitive noise in quantum dots under periodic perturbation

Details Phase sensitive noise in quantum dots under periodic perturbation Phase sensitive noise in quantum dots under periodic perturbation

2003-01-16

arxiv.org/abs/cond-mat/0301308v2

Phys. Rev. Lett. 91, 036804 (2003)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Published version. Improved discussion, with a few small typos corrected

Scientific paper

10.1103/PhysRevLett.91.036804

We evaluate the ensemble averaged noise in a chaotic quantum dot subject to DC bias and a periodic perturbation of frequency $\Omega$. The noise displays cusps at bias $V_n=n\hbar\Omega/e$ that survive the average, even when the period of the perturbation is far shorter than the dwell time in the dot. These features are sensitive to the phase of the time-dependent scattering amplitudes of electrons to pass through the system.

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