| Autor: |
Oskouei, Samad Khabbazi, Mancini, Stefano, Rexiti, Milajiguli |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
Proc. R. Soc. A 479: 20220796 (2023) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1098/rspa.2022.0796 |
| Popis: |
We investigate the usefulness of side entanglement in discriminating between two generic qubit channels, {\ up to unitary pre- and post-processing,} and determine exact conditions under which it does enhance (as well as conditions under which it does not) the success probability. This is done in a constructive way by first analyzing the problem for channels that are extremal in the set of completely positive and trace-preserving qubit linear maps and then for channels that are inside such a set. |
| Databáze: |
arXiv |
| Externí odkaz: |
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