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.

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References in corpus (21)

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Cited by in corpus (12)

• Spin-orbit coupling and anisotropic exchange in two-electron double quantum dots
• The Larmor clock and anomalous spin dephasing in silicon
• Timescales of tunneling decay of a localized state
• Dynamical suppression of tunneling and spin switching of a spin-orbit-coupled atom in a double-well trap
• Anisotropic exchange coupling in a nanowire double quantum dot with strong spin-orbit coupling
• Position and Spin Control by Dynamical Ultrastrong Spin-Orbit Coupling
• Photo-induced spin filtering in a double quantum dot
• 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
• Spin dynamics in tunneling decay of a metastable state
• Spin and tunneling dynamics in an asymmetrical double quantum dot with spin - orbit coupling
• Repeated measurements and nuclear spin polarization