On the general constraints in single qubit quantum process tomography

Bhandari, Ramesh; Peters, Nicholas A.

doi:10.1038/srep26004

Title: On the general constraints in single qubit quantum process tomography

Journal Article · Wed May 18 00:00:00 EDT 2016 · Scientific Reports

DOI:https://doi.org/10.1038/srep26004· OSTI ID:1254088

Bhandari, Ramesh ^[1]; Peters, Nicholas A. ^[2]

Laboratory of Physical Science, College Park, MD (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

In this study, we briefly review single-qubit quantum process tomography for trace-preserving and nontrace-preserving processes, and derive explicit forms of the general constraints for fitting experimental data. These forms provide additional insight into the structure of the process matrix. We illustrate this with several examples, including a discussion of qubit leakage error models and the intuition which can be gained from their process matrices.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1254088

Journal Information:: Scientific Reports, Vol. 6, Issue C; ISSN 2045-2322

Publisher:: Nature Publishing GroupCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 4 works

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References (8)

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Prescription for experimental determination of the dynamics of a quantum black box Chuang, Isaac L.; Nielsen, M. A. Journal of Modern Optics, Vol. 44, Issue 11-12 https://doi.org/10.1080/09500349708231894	journal	November 1997
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Experimental Estimation of Average Fidelity of a Clifford Gate on a 7-Qubit Quantum Processor Lu, Dawei; Li, Hang; Trottier, Denis-Alexandre Physical Review Letters, Vol. 114, Issue 14 https://doi.org/10.1103/physrevlett.114.140505	journal	April 2015
Complete Characterization of a Quantum Process: The Two-Bit Quantum Gate Poyatos, J. F.; Cirac, J. I.; Zoller, P. Physical Review Letters, Vol. 78, Issue 2 https://doi.org/10.1103/physrevlett.78.390	journal	January 1997

Cited By (2)

Encoding a qubit in a trapped-ion mechanical oscillator Flühmann, C.; Nguyen, T. L.; Marinelli, M. Nature, Vol. 566, Issue 7745 https://doi.org/10.1038/s41586-019-0960-6	journal	February 2019
Encoding a qubit in a trapped-ion mechanical oscillator Flühmann, Christa; Nguyen, Thanh Long; Marinelli, Matteo arXiv https://doi.org/10.48550/arxiv.1807.01033	text	January 2018

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