Discrimination of bosonic dephasing quantum channels

• URL: http://arxiv.org/abs/2407.14935v2
• Date: Sun, 4 Aug 2024 08:56:24 GMT
• Title: Discrimination of bosonic dephasing quantum channels
• Authors: Samad Khabbazi Oskouei, Laleh Memarzadeh, Milajiguli Rexiti, Stefano Mancini,
• Abstract summary: We study the possibility of discriminating between two bosonic dephasing quantum channels. In the presence of an input energy constraint, we derive an upper bound on the error probability. We extend these results from single-shot to multi-shot discrimination, envisaging the behavior.
• Score: 3.7498611358320733
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We study the possibility of discriminating between two bosonic dephasing quantum channels. We show that unambiguous discrimination is not realizable. We then consider discrimination with nonzero error probability and minimize this latter in the absence of input constraints. In the presence of an input energy constraint, we derive an upper bound on the error probability. Finally, we extend these results from single-shot to multi-shot discrimination, envisaging the asymptotic behavior.

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