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Iterative quantum algorithm for distributed clock synchronization
Authors:Wang Hong-Fu Zhang Shou
Affiliation:Department of Physics, College of Science, Yanbian University, Yanji 133002, China
Abstract:Clock synchronization is a well-studied problem with many practical and scientific applications. We propose an arbitrary accuracy iterative quantum algorithm for distributed clock synchronization using only three qubits. The n bits of the time difference Δ between two spatially separated clocks can be deterministically extracted by communicating only O(n) messages and executing the quantum iteration process n times based on the classical feedback and measurement operations. Finally, we also give the algorithm using only two qubits and discuss the success probability of the algorithm.
Keywords:clock synchronization  iterative algorithm
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