Abstract We proposed a fiber-based quantum clock synchronization protocol by employing the dispersion cancellation feature of the frequency anti-correlated entangled source under the quantum interference measurement. It is shown that, the accuracy of the synchronization is mainly dependent on the bandwidth of the frequency entangled biphoton spectrum and on the temperature variation induced fluctuations in both the reference fiber coiling and the fiber link. With this proposal, synchronization between two clocks at a distance of ten kilometers can be implemented with an accuracy below a picosecond.
Dispersion-free quantum clock synchronization via fiber link
Advances in Space Research ; 50 , 11 ; 1489-1494
2012-07-26
6 pages
Article (Journal)
Electronic Resource
English
Dispersion-free quantum clock synchronization via fiber link
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