Coherent optical control of the spin of a single hole in a quantum dot

Abstract

We demonstrate coherent optical control of a single hole spin confined to an InAs/GaAs quantum dot. A superposition of hole spin states is created by fast (10-100 ps) dissociation of a spin-polarized electron-hole pair. Full control of the hole-spin is achieved by combining coherent rotations about two axes: Larmor precession of the hole-spin about an external Voigt geometry magnetic field, and rotation about the optical-axis due to the geometric phase shift induced by a picosecond laser pulse resonant with the hole-trion transition.

6 pages, 3 figs, include supplement, final version

References in corpus (13)

• Spin decoherence of a heavy hole coupled to nuclear spins in a quantum dot
• Stimulated and spontaneous optical generation of electron spin coherence in charged GaAs quantum dots
• Ultrafast optical control of entanglement between two quantum dot spins
• Coherent control and suppressed nuclear feedback of a single quantum dot hole qubit
• Phonon induced Rabi frequency renormalization of optically driven single InGaAs/GaAs quantum dots
• Observation of extremely slow hole spin relaxation in self-assembled quantum dots
• Hole - Nuclear Spin Interaction in Quantum Dots
• Optical control of one and two hole spins in interacting quantum dots
• Fast optical preparation, control and read-out of single quantum dot spin
• Theory of fast optical spin rotation in a quantum dot based on geometric phases and trapped states
• Direct measurement of the hole-nuclear spin interaction in single quantum dots
• Universal phase shift and non-exponential decay of driven single-spin oscillations
• Fast high fidelity hole spin initialization in a single InGaAs quantum dot

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• Theory of spin inertia in singly-charged quantum dots
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• Spin-echo dynamics of a heavy hole in a quantum dot
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• Layer-Dependent Spin Properties of Charge Carriers in Vertically Coupled Telecom Quantum Dots
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