Quantum-optical process tomography using coherent states

M. Lobino*, S. Rahimi-Keshari, D. Korystov, C. Kupchak, E. Figueroa, A. Scherer, B. C. Sanders, A. I. Lvovsky

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review


We review the method for characterizing, with arbitrarily high accuracy, any quantum optical process, which our group has developed over the past few years. Our protocol recovers complete knowledge of the process by studying, via homodyne tomography, its effect on a set of coherent states, that is, classical fields produced by common laser sources. We present a simple scheme for calculating the process matrix from this information. We demonstrate the capability of our protocol by demonstrating complete characterization of an optical memory based on electromagnetically induced transparency.

Original languageEnglish
Title of host publicationQuantum Communication, Measurement and Computing, QCMC 2010
Subtitle of host publicationAIP Conference Proceedings
EditorsTimothy Ralph, Ping Koy Lam
Place of PublicationCollege Park, MD
PublisherAmerican Institute of Physics
Number of pages10
ISBN (Print)9780735409217
Publication statusPublished - 2011
Externally publishedYes
Event10th International Conference on Quantum Communication, Measurement And Computing, QCMC 2010 - Brisbane, QLD, Australia
Duration: 19 Jul 201023 Jul 2010


Other10th International Conference on Quantum Communication, Measurement And Computing, QCMC 2010
CityBrisbane, QLD


  • Glauber-Sudarshan function
  • Quantum process tomography
  • quantum-optical memory


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