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

doi:10.1103/PhysRevLett.119.150401

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

Optical Sciences, College of

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

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.

Original language	English (US)
Article number	150401
Journal	Physical review letters
Volume	119
Issue number	15
DOIs	https://doi.org/10.1103/PhysRevLett.119.150401
State	Published - Oct 13 2017

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1103/PhysRevLett.119.150401

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title = "Experimental Study of Optimal Measurements for Quantum State Tomography",

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.",

author = "H. Sosa-Martinez and Lysne, {N. K.} and Baldwin, {C. H.} and A. Kalev and Deutsch, {I. H.} and Jessen, {P. S.}",

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AU - Jessen, P. S.

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AB - 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.

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Experimental Study of Optimal Measurements for Quantum State Tomography

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