Experimental Study of Optimal Measurements for Quantum State Tomography

H. Sosa-Martinez, N. K. Lysne, C. H. Baldwin, A. Kalev, I. H. Deutsch, P. S. Jessen

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


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.

Original languageEnglish (US)
Article number150401
JournalPhysical review letters
Issue number15
StatePublished - Oct 13 2017

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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