Process POVM: A mathematical framework for the description of process tomography experiments

Details Process POVM: A mathematical framework for the description of process tomography experiments Process POVM: A mathematical framework for the description of process tomography experiments

2008-02-26

arxiv.org/abs/0802.3862v2

Phys. Rev. A 77, 062112 (2008)

Physics

Quantum Physics

4 pages, comments are welcome

Scientific paper

10.1103/PhysRevA.77.062112

In this paper we shall introduce the mathematical framework for the description of measurements of quantum processes. Using this framework the process estimation problems can be treated in the similar way as the state estimation problems, only replacing the concept of positive operator valued measure (POVM) by the concept of process POVM (PPOVM). In particular, we will show that any measurement of qudit channels can be described by a collection of effects (positive operators) defined on two-qudit system. However, the effects forming a PPOVM are not normalized in the usual sense. We will demonstrate the usage of this formalism in discrimination problems by showing that perfect channel discrimination is equivalent to a specific unambiguous state discrimination.

Affiliated with

Also associated with

No associations

Rating

Process POVM: A mathematical framework for the description of process tomography experiments 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 Process POVM: A mathematical framework for the description of process tomography experiments, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process POVM: A mathematical framework for the description of process tomography experiments will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-607200