Shuttle instabilities: semiclassical phase analysis

Details Shuttle instabilities: semiclassical phase analysis Shuttle instabilities: semiclassical phase analysis

2004-01-20

arxiv.org/abs/cond-mat/0401355v1

Physica E 22 (1-3), 721 (2004)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 3 figures, presented at EP2DS-15, Nara, July 2003

Scientific paper

10.1016/j.physe.2003.12.108

We present a semiclassical analysis of the instability of an electron shuttle composed of three quantum dots: two are fixed and coupled via leads to electron resevoirs at different chemical potentials, while the central dot is mounted on a classical harmonic oscillator. The semiclassical analysis, which is valid if the central dot oscillation amplitude is larger than the quantum mechanical zero point motion, can be used to gain additional insight about the relationship of resonances and instabilities of the device.

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