29 January 2008 Quantum information processing with diamond nitrogen-vacancy centers coupled to microcavities
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Abstract
Scalable quantum information processing using nitrogen-vacancy (NV) centers in diamond will be difficult without the ability to couple the centers to optical microcavities and waveguides. Here we present our preliminary result of coupling a single NV center in a nanoparticle to a silica microdisk at cryogenic temperatures. The cavity-coupled NV photoluminescence is coupled out of the cavity through a tapered fiber. Although the current system is limited by the spectral properties of the NV center and the Q of the cavity, efficient particle-cavity and cavity-waveguide coupling should lead to the realization of a "one-dimensional atom" as needed for CQED, enable single-shot electron-spin readout, and increase the probability of success in entanglement schemes based on single-photon detection.
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Kai-Mei C. Fu, Charles Santori, Sean Spillane, Raymond G. Beausoleil, "Quantum information processing with diamond nitrogen-vacancy centers coupled to microcavities", Proc. SPIE 6903, Advanced Optical Concepts in Quantum Computing, Memory, and Communication, 69030M (29 January 2008); doi: 10.1117/12.772322; https://doi.org/10.1117/12.772322
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KEYWORDS
Diamond

Optical microcavities

Nanoparticles

Luminescence

Particles

Quantum information processing

Silica

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