Classical and quantum chaotic angular-momentum pumps

Physical Review Letters
T Dittrich, F L Dubeibe

Abstract

We study directed transport of charge and intrinsic angular momentum by periodically driven scattering in the regime of fast and strong driving. A spin-orbit coupling through a kicked magnetic field confined to a compact region in space leads to irregular scattering and triggers spin flips in a spatially asymmetric manner which allows us to generate polarized currents. The dynamical mechanisms responsible for the spin separation carry over to the quantum level and give rise to spin pumping. Our theory based on the Floquet formalism is confirmed by numerical solutions of the time-dependent inhomogeneous Schrödinger equation with a continuous source term.

References

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Mar 24, 2005·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Holger SchanzRoland Ketzmerick

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Citations

Jun 15, 2016·Physical Review. E·Aritra K MukhopadhyayPeter Schmelcher

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