[quantum-info] PIQuDos seminar Wed Sep 30: Joel Wallman

Isaac Kim ikim at perimeterinstitute.ca
Tue Sep 29 09:30:42 EDT 2015

Please join us on Wednesday, Sep 30 at 4pm in the Time room for a quantum information seminar by Joel Wallman.

Title: Characterizing the coherence of errors

Abstract: I will introduce the unitarity, a parameter quantifying the coherence of a channel and show that it is useful for two reasons. First, it can be efficiently estimated via a variant of randomized benchmarking. Second, it captures useful information about the channel, such as the optimal fidelity achievable with unitary corrections and an improved bound on the diamond distance.
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