Quantum Stirring in low dimensional devices

Details Quantum Stirring in low dimensional devices Quantum Stirring in low dimensional devices

2008-02-17

arxiv.org/abs/0802.2364v2

Phys. Rev. B 77, 245440 (2008)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

6 pages, 5 figures, improved version

Scientific paper

10.1103/PhysRevB.77.245440

A circulating current can be induced in the Fermi sea by displacing a scatterer, or more generally by integrating a quantum pump into a closed circuit. The induced current may have either the same or the opposite sense with respect to the "pushing" direction of the pump. We work out explicit expressions for the associated geometric conductance using the Kubo-Dirac monopoles picture, and illuminate the connection with the theory of adiabatic passage in multiple path geometry.

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