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Temporally multiplexed quantum repeaters with atomic gases

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Published in Physical Review. A. 2010, vol. 82, no. 1
Abstract We propose a temporally multiplexed version of the Duan-Lukin-Cirac-Zoller (DLCZ) quantum-repeater protocol using controlled inhomogeneous spin broadening in atomic gases. A first analysis suggests that the advantage of multiplexing is negated by noise due to spin-wave excitations corresponding to unobserved directions of Stokes photon emission. However, this problem can be overcome with the help of a moderate-finesse cavity which is in resonance with Stokes photons, but invisible to the anti-Stokes photons. Our proposal promises greatly enhanced quantum repeater performance with atomic gases.
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SIMON, Christoph, DE RIEDMATTEN, Hugues, AFZELIUS, Mikael. Temporally multiplexed quantum repeaters with atomic gases. In: Physical Review. A, 2010, vol. 82, n° 1. doi: 10.1103/PhysRevA.82.010304 https://archive-ouverte.unige.ch/unige:36615

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Deposited on : 2014-05-13

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