Revisiting the Dolinar Receiver through Multiple-Copy State Discrimination Theory
| Autor: | Assalini, Antonio, Pozza, Nicola Dalla, Pierobon, Gianfranco |
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| Rok vydání: | 2011 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevA.84.022342 |
| Popis: | We consider the problem of discriminating between two quantum coherent states by interpreting a single state like being a collection of several successive copies of weaker coherent states. By means of recent results on multiple-copy state discrimination, it is possible to give a reinterpretation of the Dolinar receiver, and carry out a quite straightforward analysis of its behavior. We also propose and investigate a suboptimal detection scheme derived from the Dolinar's architecture, which is shown to slightly outperform some other near-optimal schemes available in literature. Comment: 6 pages, 3 figures |
| Databáze: | arXiv |
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