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How far can one send a photon?

Published in Frontiers of Physics. 2015, vol. 10, no. 6
Abstract The answer to the question How far can one send a photon? depends heavily on what one means by a photon and on what one intends to do with that photon. For direct quantum communication, the limit is approximately 500 km. For terrestrial quantum communication, near-future technologies based on quantum teleportation and quantum memories will soon enable quantum repeaters that will turn the development of a world-wide-quantum-web (WWQW) into a highly non-trivial engineering problem. For Device-Independent Quantum Information Processing, near-future qubit amplifiers (i.e., probabilistic heralded amplification of the probability amplitude of the presence of photonic qubits) will soon allow demonstrations over a few tens of kilometers.
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Research group Groupe Gisin
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GISIN, Nicolas. How far can one send a photon?. In: Frontiers of Physics, 2015, vol. 10, n° 6. doi: 10.1007/s11467-015-0485-x https://archive-ouverte.unige.ch/unige:84113

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Deposited on : 2016-06-01

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