Giant optical Faraday rotation induced by a single-electron spin in a quantum dot: Applications to entangling remote spins via a single photon
By C. Hu, A. B. Young, Jeremy Lloyd O'Brien, W. J. Munro, John G. Rarity. 2007
287 citations recorded by the source corpus.
We propose a quantum nondemolition method---a giant optical Faraday rotation near the resonant regime to measure a single-electron spin in a quantum dot inside a microcavity where a negatively charged exciton strongly couples to the cavity mode. Left-circularly and right-circularly polarized lights reflected from the cavity obtain different phase shifts due to cavity quantum electrodynamics and the optical spin selection rule. This yields giant and tunable Faraday rotation that can be easily detected experimentally. Based on this spin-detection technique, a deterministic photon-spin entangling gate and a scalable scheme to create remote spin entanglement via a single photon are proposed.
Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics
View Paper: https://www.semanticscholar.org/paper/3efcc290b611b49c03f62d79537eb766910b6d5c
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In Artificial Intelligence
In Atomic and Molecular Physics, and Optics
Citations in the corpus
- Cavity-based quantum networks with single atoms and optical photons (2014, methodology): “In addition, an analytic result can also be obtained [see e.g. (Hu et al., 2008b; Tiecke et al., 2014)] when the atomic excitation is negligibly small and the photonic wavepacket envelope only varies on a timescale longer than the cavity decay time.”
- Inside Quantum Repeaters (2015, background): “1(c) is based on a single photon being transmitted between the nodes [34], [44], [50], [51], [53], [56], [57].”