Theory of optical spin control in quantum dot microcavities

Abstract

We present a microscopic theory of optical initialization, control and detection for a single electron spin in a quantum dot embedded into a zero-dimensional microcavity. The strong coupling regime of the trion and the cavity mode is addressed. We demonstrate that efficient spin orientation by a single circularly polarized pulse is possible in relatively weak transverse magnetic fields. The possibilities for spin control by additional circularly polarized pulse are analyzed. Under optimal conditions the Kerr and Faraday rotation angles induced by the spin polarized electron may reach tens of degrees.

14 pages, 7 figures, v2 contains minor revisions

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Cited by in corpus (12)

• Tomography of optical polarization rotation induced by a quantum dot-cavity device
• Spin fluctuations of non-equilibrium electrons and excitons in semiconductors
• Measurement back-action and spin noise spectroscopy in a charged cavity-QED device in the strong coupling regime
• Quantum Zeno effect under continuous spin noise measurement in a quantum dot-micropillar cavity
• Ultrafast pulse phase shift in a charged quantum dot- micropillar system
• Optical measurement of electron spins in quantum dots: Quantum Zeno effects
• Universal power law decay of spin polarization in double quantum dot
• Hole-capture competition between a single quantum dot and an ionized acceptor
• Stochastic Faraday rotation induced by the electric current fluctuations in nanosystems
• Hidden anisotropy controls spin-photon entanglement in a charged quantum dot
• Exciton energy oscillations induced by quantum beats
• Birefringent spin-photon interface generates polarization entanglement