On Quantum State Observability and Measurement

Details On Quantum State Observability and Measurement On Quantum State Observability and Measurement

2003-07-17

arxiv.org/abs/quant-ph/0307127v1

Physics

Quantum Physics

Scientific paper

10.1088/0305-4470/36/37/310

We consider the problem of determining the state of a quantum system given one or more readings of the expectation value of an observable. The system is assumed to be a finite dimensional quantum control system for which we can influence the dynamics by generating all the unitary evolutions in a Lie group. We investigate to what extent, by an appropriate sequence of evolutions and measurements, we can obtain information on the initial state of the system. We present a system theoretic viewpoint of this problem in that we study the {\it observability} of the system. In this context, we characterize the equivalence classes of indistinguishable states and propose algorithms for state identification.

Affiliated with

Also associated with

No associations

Rating

On Quantum State Observability and Measurement 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 On Quantum State Observability and Measurement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On Quantum State Observability and Measurement will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-489608