Pulse-pumped double quantum dot with spin-orbit coupling

Abstract

We consider the full driven quantum dynamics of a qubit realized as spin of electron in a one-dimensional double quantum dot with spin-orbit coupling. The driving perturbation is taken in the form of a single half-period pulse of electric field. Spin-orbit coupling leads to a nontrivial evolution in the spin and charge densities making the dynamics in both quantities irregular. As a result, the charge density distribution becomes strongly spin-dependent. The transition from the field-induced tunneling to the strong coupling regime is clearly seen in the charge and spin channels. These results can be important for the understanding of the techniques for the spin manipulation in nanostructures.

6 figures

References in corpus (13)

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Cited by in corpus (5)

• The Larmor clock and anomalous spin dephasing in silicon
• Timescales of tunneling decay of a localized state
• Time dependent configuration interaction simulations of spin swap in spin orbit coupled double quantum dots
• Electric manipulation of electron spin relaxation induced by confined phonons in nanowire-based double quantum dots
• Repeated measurements and nuclear spin polarization