Optimum teleportation with imperfect Bell-state measurements

Author(s)
Jaroslav Rehacek, Zdenek Hradil, Jaromir Fiurasek, Caslav Brukner
Abstract

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.

Organisation(s)
External organisation(s)
Palacký University Olomouc (UP)
Pages
16-20
No. of pages
5
DOI
https://doi.org/10.1117/12.475881
Publication date
2002
Austrian Fields of Science 2012
103026 Quantum optics
Portal url
https://ucrisportal.univie.ac.at/en/publications/optimum-teleportation-with-imperfect-bellstate-measurements(74636ddc-ceb5-47fa-a565-f16e734de4c6).html