Measurement back-action and spin noise spectroscopy in a charged cavity-QED device in the strong coupling regime

Abstract

We study theoretically the spin-induced and photon-induced fluctuations of optical signals from a singly-charged quantum dot-microcavity structure. We identify the respective contributions of the photon-polariton interactions, in the strong light-matter coupling regime, and of the quantum back-action induced by photon detection on the spin system. Strong spin projection by a single photon is shown to be achievable, allowing the initialization and measurement of a fully-polarized Larmor precession. The spectrum of second-order correlations is deduced, displaying information on both spin and quantum dot-cavity dynamics. The presented theory thus bridges the gap between the fields of spin noise spectroscopy and quantum optics.

arXiv comment12 pages, 8 figures

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Cited by in corpus (11)

• Increased sensitivity of spin noise spectroscopy using homodyne detection in $n$-doped GaAs
• Higher order moments, cumulants, and spectra of continuous quantum noise measurements
• Quantum Zeno effect under continuous spin noise measurement in a quantum dot-micropillar cavity
• Optical measurement of electron spins in quantum dots: Quantum Zeno effects
• Optical Resonance Shift Spin Noise Spectroscopy
• Birefringence and dichroism effects in the spin noise spectra of a spin-1 system
• Hole-capture competition between a single quantum dot and an ionized acceptor
• Fundamental limits for non-destructive measurement of a single spin by Faraday rotation
• Hidden anisotropy controls spin-photon entanglement in a charged quantum dot
• Birefringent spin-photon interface generates polarization entanglement
• Fluctuations in Spin Dynamics Excited by Pulsed Light