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- W2024248697 abstract "Recently a conditional quantum teleportation protocol has been proposed by Chen et al. [New J. Phys. 7, 172 (2005)] which is based on the collective spontaneous emission of a photon from a pair of quantum dots. We formulate a similar protocol for collective emission from a pair of atoms, one of which is entangled with a single mode of an optical cavity. We focus on the performance of the protocol as characterized by the fidelity of the teleported state and the overall success probability. We consider a strategy employing temporally resolved photodetection of the emitted photon in order to distinguish super-radiant from subradiant emission on the basis of a single detected photon. We find the fidelity approaches unity as the spacing of the atoms becomes much smaller than the emission wavelength with a success probability of 0.25 assuming perfect collection and detection of the emitted light. Incorporating finite collection and detection efficiency we find the protocol will still exceed a fidelity of 2/3 provided that the combined collection and detection efficiency is at least 3/4. We describe a cavity QED realization which could allow these requirements to be met using current experimental techniques." @default.
- W2024248697 created "2016-06-24" @default.
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- W2024248697 date "2009-04-16" @default.
- W2024248697 modified "2023-09-26" @default.
- W2024248697 title "Performance of a quantum teleportation protocol based on temporally resolved photodetection of collective spontaneous emission" @default.
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- W2024248697 doi "https://doi.org/10.1103/physreva.79.042322" @default.
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