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- W3105190437 startingPage "025021" @default.
- W3105190437 abstract "The ability to detect single photons with high efficiency is a crucial requirement for various quantum information applications. By combining the storage process of a quantum memory for photons with fluorescence-based quantum state measurement, it is in principle possible to achieve high efficiency photon counting in large ensembles of atoms. The large number of atoms can, however, pose significant problems in terms of noise stemming from imperfect initial state preparation and off-resonant fluorescence. We propose a concrete implementation of a photon number resolving detector based on an ion Coulomb crystal inside a moderately high-finesse optical cavity. The cavity enhancement leads to an effective optical depth of 15 for a finesse of 3000 with only about 1500 ions interacting with the light field. We show that these values allow for essentially noiseless detection with an efficiency larger than 90%. Moderate experimental parameters allow for repetition rates of about 5 kHz, limited by the time needed for fluorescence collection. Potential applications are discussed." @default.
- W3105190437 created "2020-11-23" @default.
- W3105190437 creator A5063866244 @default.
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- W3105190437 date "2013-02-14" @default.
- W3105190437 modified "2023-09-25" @default.
- W3105190437 title "Analysis of a photon number resolving detector based on fluorescence readout of an ion Coulomb crystal quantum memory inside an optical cavity" @default.
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- W3105190437 doi "https://doi.org/10.1088/1367-2630/15/2/025021" @default.
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