22 July 2002 Optimum teleportation with imperfect Bell-state measurements
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Proceedings Volume 4888, First International Workshop on Classical and Quantum Interference; (2002) https://doi.org/10.1117/12.475881
Event: First International Workshop of Research Center for Optics on Classical and Quantum Interference, 2001, Olomouc, Czech Republic
We study teleportation of qubits with imperfect Bell analysis on the sender's side. For the chosen family of Alice's measurements we find Bob's operations maximizing the overall fidelity of the teleportation protocol. In certain cases the optimum maps turn out to be nonunitary operations. This means that decoherence can sometimes enhance the performance of quantum teleportation protocols.
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Jaroslav Rehacek, Jaroslav Rehacek, Zdenek Hradil, Zdenek Hradil, Jaromir Fiurasek, Jaromir Fiurasek, C. Brukner, C. Brukner, } "Optimum teleportation with imperfect Bell-state measurements", Proc. SPIE 4888, First International Workshop on Classical and Quantum Interference, (22 July 2002); doi: 10.1117/12.475881; https://doi.org/10.1117/12.475881

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