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How far can one send a photon? | | Nicolas Gisin
; | | Date: |
3 Aug 2015 | | Abstract: | The answer to the question {it How far can one send a photon?} depends
heavily on what one means by {it a photon} and on what one intends to do with
that photon. For direct quantum communication the limit is of about 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 presence of photonic qubits) will
soon allow demonstrations over a few tens of km. | | Source: | arXiv, 1508.0351 | | Services: | Forum | Review | PDF | Favorites | |
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