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
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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.
Creators(s): | Hunter, Kieran; | Item type: | Article |
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ID code: | 6206 |
Keywords: | nonorthogonal quantum states, quantum states, qubit, Davies Theorem, qubit states, optimal discrimination, Physics, Physics and Astronomy(all) |
Subjects: | Science > Physics |
Department: | Faculty of Science > Physics |
Depositing user: | Miss Darcy Spiller |
Date deposited: | 02 Jun 2008 |
Last modified: | 25 Jan 2021 02:49 |
URI: | https://strathprints.strath.ac.uk/id/eprint/6206 |
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