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

Cited by in corpus (7)

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• Adiabatic optical entanglement between electron spins in separate quantum dots
• Anisotropic spin splitting of the electron ground state in InAs quantum dots
• Indirect spin dephasing via charge state decoherence in optical control schemes in quantum dots