Quantum-enhanced precision in unitary process tomography

Rebecca Whittaker, Xiao Qi Zhou, Hugo Cable, Peter Shadbolt, Jeremy L. O'Brien, Jonathan C.F. Matthews

Research output: Contribution to conferenceConference presentation/ephemerapeer-review


A novel scheme for unitary quantum process tomography (QPT) is theoretically presented and implemented experimentally. Multi-photon input states are used to obtain quantum-enhanced precision for the unitary estimation. Our results are compared to standard QPT.

Original languageEnglish
Publication statusPublished - 1 Jan 2014
Externally publishedYes
Event2014 Conference on Lasers and Electro-Optics, CLEO 2014 - San Jose, United States
Duration: 8 Jun 201413 Jun 2014


Conference2014 Conference on Lasers and Electro-Optics, CLEO 2014
Country/TerritoryUnited States
CitySan Jose
Internet address


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