Coulomb blockade in quantum dots under AC pumping

Details Coulomb blockade in quantum dots under AC pumping Coulomb blockade in quantum dots under AC pumping

2003-12-08

arxiv.org/abs/cond-mat/0312191v3

Phys. Rev. B 71, 085311 (2005)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

12 pages, 8 figures

Scientific paper

We study conductance through a quantum dot under Coulomb blockade conditions in the presence of an external periodic perturbation. The stationary state is determined by the balance between the heating of the dot electrons by the perturbation and cooling. We analyze two cooling mechanisms: electron exchange with the cold contacts and emission of phonons. Together with the usual linear Ohmic heating of the dot electrons we consider possible effects of dynamic localization. The combination of the abovementioned factors may result in a drastic change of the shape of the Coulomb blockade peak with respect to the usual equilibrium one.

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