Sequential Quantum Channel Discrimination

Research output: Chapter in book/report/conference proceedingConference contributionResearchpeer review

Authors

  • Yonglong Li
  • Christoph Hirche
  • Marco Tomamichel

External Research Organisations

  • National University of Singapore
  • Technical University of Munich (TUM)
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Details

Original languageEnglish
Title of host publication2022 IEEE International Symposium on Information Theory, ISIT 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages270-275
Number of pages6
ISBN (electronic)9781665421591
Publication statusPublished - 2022
Externally publishedYes
Event2022 IEEE International Symposium on Information Theory, ISIT 2022 - Espoo, Finland
Duration: 26 Jun 20221 Jul 2022

Publication series

NameIEEE International Symposium on Information Theory - Proceedings
Volume2022-June
ISSN (Print)2157-8095

Abstract

We consider the sequential quantum channel discrimination problem using adaptive and non-adaptive strategies. In this setting the number of uses of the underlying quantum channel is not fixed but a random variable that is either bounded in expectation or with high probability. We show that, by using adaptive strategies for the discrimination problem, both types of error probabilities decrease to zero exponentially fast and the rates are characterized by the measured relative entropy between two quantum channels. Allowing for quantum memory, we see that the optimal rates are given by the regularized channel relative entropy. We also characterize the error exponents in the discrimination problem if non-adaptive strategies are used.

ASJC Scopus subject areas

Cite this

Sequential Quantum Channel Discrimination. / Li, Yonglong; Hirche, Christoph; Tomamichel, Marco.
2022 IEEE International Symposium on Information Theory, ISIT 2022. Institute of Electrical and Electronics Engineers Inc., 2022. p. 270-275 (IEEE International Symposium on Information Theory - Proceedings; Vol. 2022-June).

Research output: Chapter in book/report/conference proceedingConference contributionResearchpeer review

Li, Y, Hirche, C & Tomamichel, M 2022, Sequential Quantum Channel Discrimination. in 2022 IEEE International Symposium on Information Theory, ISIT 2022. IEEE International Symposium on Information Theory - Proceedings, vol. 2022-June, Institute of Electrical and Electronics Engineers Inc., pp. 270-275, 2022 IEEE International Symposium on Information Theory, ISIT 2022, Espoo, Finland, 26 Jun 2022. https://doi.org/10.1109/ISIT50566.2022.9834768
Li, Y., Hirche, C., & Tomamichel, M. (2022). Sequential Quantum Channel Discrimination. In 2022 IEEE International Symposium on Information Theory, ISIT 2022 (pp. 270-275). (IEEE International Symposium on Information Theory - Proceedings; Vol. 2022-June). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISIT50566.2022.9834768
Li Y, Hirche C, Tomamichel M. Sequential Quantum Channel Discrimination. In 2022 IEEE International Symposium on Information Theory, ISIT 2022. Institute of Electrical and Electronics Engineers Inc. 2022. p. 270-275. (IEEE International Symposium on Information Theory - Proceedings). doi: 10.1109/ISIT50566.2022.9834768
Li, Yonglong ; Hirche, Christoph ; Tomamichel, Marco. / Sequential Quantum Channel Discrimination. 2022 IEEE International Symposium on Information Theory, ISIT 2022. Institute of Electrical and Electronics Engineers Inc., 2022. pp. 270-275 (IEEE International Symposium on Information Theory - Proceedings).
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