Cryptographic quantum metrology
arXiv:1706.03894 · doi:10.1103/PhysRevA.99.022314
Abstract
We develop a general framework for parameter estimation that allows only trusted parties to access the result and achieves optimal precision. The protocols are designed such that adversaries can access some information indeterministically, but only at the risk of getting caught (cheat-sensitivity); under the assumption that the adversary can access the channel only once, then the protocol is unconditionally secure. By combining techniques from quantum cryptography and quantum metrology, we devise cryptographic procedures for single parameter estimation when an arbitrary number of parties are involved.
6 pages, 2 figures. This version has undergone significant changes and supersedes the previous ones
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