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Strong Purcell Effect on a Neutral Atom Trapped in an Open Fiber Cavity.

08:00 EDT 26th October 2018 | BioPortfolio

Summary of "Strong Purcell Effect on a Neutral Atom Trapped in an Open Fiber Cavity."

We observe a sixfold Purcell broadening of the D_{2} line of an optically trapped ^{87}Rb atom strongly coupled to a fiber cavity. Under external illumination by a near-resonant laser, up to 90% of the atom's fluorescence is emitted into the resonant cavity mode. The sub-Poissonian statistics of the cavity output and the Purcell enhancement of the atomic decay rate are confirmed by the observation of a strongly narrowed antibunching dip in the photon autocorrelation function. The photon leakage through the higher-transmission mirror of the single-sided resonator is the dominant contribution to the field decay (κ≈2π×50  MHz), thus offering a high-bandwidth, fiber-coupled channel for photonic interfaces such as quantum memories and single-photon sources.

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This article was published in the following journal.

Name: Physical review letters
ISSN: 1079-7114
Pages: 173603

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