DocumentCode
1770008
Title
Quantum-enhanced precision in unitary process tomography
Author
Whittaker, Rebecca ; Xiao-Qi Zhou ; Cable, Hugo ; Shadbolt, Peter ; O´Brien, Jeremy L. ; Matthews, Jonathan C. F.
Author_Institution
Dept. of Electr. & Electron. Eng., Univ. of Bristol, Bristol, UK
fYear
2014
fDate
8-13 June 2014
Firstpage
1
Lastpage
2
Abstract
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.
Keywords
multiphoton processes; optical tomography; quantum optics; QPT; multiphoton input states; quantum-enhanced precision; unitary quantum process tomography; Optical interferometry; Optical sensors; Photonics; Quantum computing; Quantum mechanics; Standards; Tomography;
fLanguage
English
Publisher
ieee
Conference_Titel
Lasers and Electro-Optics (CLEO), 2014 Conference on
Conference_Location
San Jose, CA
Type
conf
Filename
6988670
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