2000/07/11 by Eric A. Burt, Eric Burt, Burt, Eric +4 · 2 citations
Computer Science · Physics and Astronomy · #Advanced Frequency and Time Standards #FOS: Physical sciences #Quantum Mechanics and Applications #Quantum Physics (quant-ph) #Time Series Analysis and Forecasting #quant-ph
paper · pdf · doi:10.48550/arxiv.quant-ph/0007030
3 pages, a reply to quant-ph/0004105
arxiv created 2000/07/11 · openalex publication_date 2000/07/11 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Recently a protocol for Quantum Clock Synchronization (QCS) of remote clocks using quantum entanglement was proposed by Jozsa et al. This method has the goal of eliminating the random noise present in classical synchronization techniques. However, as stated QCS depends on the two members of each entangled pair undergoing the same unitary evolution even while being transported to different locations. This is essentially equivalent to a perfect Eddington Slow Clock Transfer protocol and thus, not an improvement over classical techniques. We will discuss this and suggest ways in which QCS may still be used.