Distant Clock Synchronization Using Entangled Photon Pairs

Alejandra Valencia; Giuliano Scarcelli; Yanhua Shih

Distant Clock Synchronization Using Entangled Photon Pairs

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arxiv quant-ph/0407204 v1 pith:S3OIWSRD submitted 2004-07-26 quant-ph

Distant Clock Synchronization Using Entangled Photon Pairs

Alejandra Valencia , Giuliano Scarcelli , Yanhua Shih This is my paper

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We report a proof-of-principle experiment on distant clock synchronization. Besides the achievement of picosecond resolution at 3 kilometer distance, this experiment demonstrated a novel concept for high accuracy non-local timing and positioning based on the quantum feature of entangled states.

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Cited by 1 Pith paper

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Quantum Protocols for Time Synchronisation and Distribution: A Critical Assessment
quant-ph 2026-04 unverdicted novelty 3.0

Quantum time synchronization protocols do not provide a near-term replacement for classical methods in most applications because time transfer precision remains the limiting factor, though they add value for physical-...