Mixed state discrimination using optimal control

Details Mixed state discrimination using optimal control Mixed state discrimination using optimal control

2009-09-08

arxiv.org/abs/0909.1572v3

Phys. Rev. Lett. 103, 220503 (2009)

Physics

Quantum Physics

Corrected ref 1 date; 4 pages & 4 figures + 2 pages & 3 figures supplementary material

Scientific paper

10.1103/PhysRevLett.103.220503

We present theory and experiment for the task of discriminating two nonorthogonal states, given multiple copies. We implement several local measurement schemes, on both pure states and states mixed by depolarizing noise. We find that schemes which are optimal (or have optimal scaling) without noise perform worse with noise than simply repeating the optimal single-copy measurement. Applying optimal control theory, we derive the globally optimal local measurement strategy, which outperforms all other local schemes, and experimentally implement it for various levels of noise.

Affiliated with

Also associated with

No associations

Rating

Mixed state discrimination using optimal control 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 Mixed state discrimination using optimal control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mixed state discrimination using optimal control will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-384897