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Multiparty quantum state discrimination

Author(s)
Peng, Tianyi(Aeronautics and astronautics scientist)Massachusetts Institute of Technology.
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Other Contributors
Massachusetts Institute of Technology. Department of Aeronautics and Astronautics.
Advisor
Moe Z. Win.
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MIT theses may be protected by copyright. Please reuse MIT thesis content according to the MIT Libraries Permissions Policy, which is available through the URL provided. http://dspace.mit.edu/handle/1721.1/7582
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Abstract
We consider the problem of identifying an unknown multiparty quantum state using local operations and classical communication (LOCC). In particular, we consider a class of protocols that utilize a sequence of LOCC, referred to as LOCC protocols. We derive the necessary and sufficient conditions for optimal LOCC protocol that maximizes the probability of correct identification (PCI) and provide an algorithm to determine the maximal PCI. Moreover, we develop a protocol based on the alternating optimization approach and demonstrate its near-optimal performance. The numerical results suggest that the LOCC protocols can be desirable alternatives to traditional discrimination approaches that require measuring the entire state of a quantum system.
Description
Thesis: S.M., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 2020
 
Cataloged from PDF of thesis.
 
Includes bibliographical references (pages 51-54).
 
Date issued
2020
URI
https://hdl.handle.net/1721.1/128062
Department
Massachusetts Institute of Technology. Department of Aeronautics and Astronautics
Publisher
Massachusetts Institute of Technology
Keywords
Aeronautics and Astronautics.

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