Properties of 1D two-barrier quantum pump with harmonically oscillating barriers

Details Properties of 1D two-barrier quantum pump with harmonically oscillating barriers Properties of 1D two-barrier quantum pump with harmonically oscillating barriers

2005-12-11

arxiv.org/abs/cond-mat/0512230v1

Physical Review B vol. 74, p.125317 (2006)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

7 pages, 8 figures

Scientific paper

10.1103/PhysRevB.74.125317

We study a one-dimensional quantum pump composed of two oscillating delta-functional barriers. The linear and non-linear regimes are considered. The harmonic signal applied to any or both barriers causes the stationary current. The direction and value of the current depend on the frequency, distance between barriers, value of stationary and oscillating parts of barrier potential and the phase shift between alternating voltages.

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