Experimental Study of Optimal Measurements for Quantum State Tomography
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PhysRevLett.119.150401.pdf
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Final Published Version
Affiliation
Univ Arizona, Coll Opt Sci, Ctr Quantum Informat & ControlUniv Arizona, Dept Phys
Issue Date
2017-10-13
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AMER PHYSICAL SOCCitation
Experimental Study of Optimal Measurements for Quantum State Tomography 2017, 119 (15) Physical Review LettersJournal
Physical Review LettersRights
© 2017 American Physical Society.Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.Abstract
Quantum tomography is a critically important tool to evaluate quantum hardware, making it essential to develop optimized measurement strategies that are both accurate and efficient. We compare a variety of strategies using nearly pure test states. Those that are informationally complete for all states are found to be accurate and reliable even in the presence of errors in the measurements themselves, while those designed to be complete only for pure states are far more efficient but highly sensitive to such errors. Our results highlight the unavoidable trade-offs inherent in quantum tomography.ISSN
0031-90071079-7114
PubMed ID
29077453Version
Final published versionSponsors
U.S. National Science Foundation [PHY-1521439, PHY-1521431, PHY 1521016]; U.S. Department of DefenseAdditional Links
https://link.aps.org/doi/10.1103/PhysRevLett.119.150401ae974a485f413a2113503eed53cd6c53
10.1103/PhysRevLett.119.150401