Dresselhaus spin-orbit coupling modulating pumps driven by triple potentials

摘要

In this paper, Dresselhaus spin-orbit coupling (SOC) modulating quantum pumps driven by triple time-dependent potentials are investigated, where the pump center are semiconductors connected to two normal leads. In detail, the parametric influence to the quantum pump current is studied by using the Floquet scattering technology, and mainly via the modulations of the potentials position, the SOC strength and component, the tunable currents pumped from the system are discussed.