Quantum clock synchronization based on shared prior entanglement

We demonstrate that two spatially separated parties (Alice and Bob) can utilize shared prior quantum entanglement, and classical communications, to establish a synchronized pair of atomic clocks. In contrast to classical synchronization schemes, the accuracy of our protocol is independent of Alice&#...

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Bibliographic Details
Published in:Physical review letters 2000-08, Vol.85 (9), p.2010-2013
Main Authors: Jozsa, R, Abrams, DS, Dowling, JP, Williams, CP
Format: Article
Language:English
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Summary:We demonstrate that two spatially separated parties (Alice and Bob) can utilize shared prior quantum entanglement, and classical communications, to establish a synchronized pair of atomic clocks. In contrast to classical synchronization schemes, the accuracy of our protocol is independent of Alice's or Bob's knowledge of their relative locations or of the properties of the intervening medium.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.85.2010