Results in optimal discrimination

Hunter, Kieran (2004) Results in optimal discrimination. American Institute of Physics Conference Proceedings, 734 (83). pp. 83-86. ISSN 1551-7616 (https://doi.org/10.1063/1.1834388)

[thumbnail of strathprints006206]
Preview
 Text. Filename: strathprints006206.pdf
Accepted Author Manuscript
Download (75kB)| Preview

Abstract

We study the problem of discriminating between non-orthogonal quantum states with least probability of error. We demonstrate that this problem can be simplified if we solve for the error itself rather than solving directly for the optimal measurement. This method enables us to derive solutions directly and thus make definite statements about the uniqueness of an optimal strategy. This approach immediately leads us to a state-discrimination analogue of Davies Theorem [1]. In the course of this, a complete solution for distinguishing equally likely pure qubit states is presented.

  • Item type:Article
    ID code:6206
    Dates:
    Date
    Event
    15 November 2004
    Published
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Miss Darcy Spiller
    Date deposited:02 Jun 2008
    Last modified:11 Nov 2024 08:43
    URI:https://strathprints.strath.ac.uk/id/eprint/6206
CORE (COnnecting REpositories)