Single-shot discrimination of quantum unitary processes

Details Single-shot discrimination of quantum unitary processes Single-shot discrimination of quantum unitary processes

2010-03-07

arxiv.org/abs/1003.1488v1

Journal of Modern Optics, 1362-3044, Volume 57, Issue 3, Pages 253-259, 2010

Physics

Quantum Physics

11 pages, 1 figure

Scientific paper

We formulate minimum-error and unambiguous discrimination problems for quantum processes in the language of process positive operator valued measures (PPOVM). In this framework we present the known solution for minimum-error discrimination of unitary channels. We derive a "fidelity-like" lower bound on the failure probability of the unambiguous discrimination of arbitrary quantum processes. This bound is saturated (in a certain range of apriori probabilities) in the case of unambiguous discrimination of unitary channels. Surprisingly, the optimal solution for both tasks is based on the optimization of the same quantity called completely bounded process fidelity.

Affiliated with

Also associated with

No associations

Rating

Single-shot discrimination of quantum unitary processes does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Single-shot discrimination of quantum unitary processes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Single-shot discrimination of quantum unitary processes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-668127