Optically-controlled single-qubit rotations in self-assembled InAs quantum dots

Abstract

We present a theory of the optical control of the spin of an electron in an InAs quantum dot. We show how two Raman-detuned laser pulses can be used to obtain arbitrary single-qubit rotations via the excitation of an intermediate trion state. Our theory takes into account a finite in-plane hole $g$-factor and hole-mixing. We show that such rotations can be performed to high fidelities with pulses lasting a few tens of picoseconds.

6 pages, 4 figures; minor changes, J-ref added

References in corpus (4)

• Complete Characterization of a Quantum Process: the Two-Bit Quantum Gate
• Theory of Quantum Optical Control of Single Spin in a Quantum Dot
• Polarized fine structure in the excitation spectrum of a negatively charged quantum dot
• Theory of Fast Quantum Control of Exciton Dynamics in Semiconductor Quantum Dots

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