Optimal feedback control for the rapid preparation of a single qubit

Details Optimal feedback control for the rapid preparation of a single qubit Optimal feedback control for the rapid preparation of a single qubit

2004-10-03

arxiv.org/abs/quant-ph/0410018v1

Proc. of SPIE 5468, 355 (2004)

Physics

Quantum Physics

8 pages, revtex4, 3 eps figures

Scientific paper

10.1117/12.547012

We consider the use of feedback control during a measurement to increase the rate at which a single qubit is purified, and more generally the rate at which near-pure states may be prepared. We derive the optimal bang-bang algorithm for rapid state preparation from an initially completely mixed state when the measurement basis is unrestricted, and evaluate its performance numerically. We also consider briefly the case in which the measurement basis is fixed with respect to the state to be prepared, and describe the qualitative structure of the optimal bang-bang algorithm.

Affiliated with

Also associated with

No associations

Rating

Optimal feedback control for the rapid preparation of a single qubit 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 Optimal feedback control for the rapid preparation of a single qubit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optimal feedback control for the rapid preparation of a single qubit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-598428