Subspace preserving completely positive maps

Details Subspace preserving completely positive maps Subspace preserving completely positive maps

2003-02-25

arxiv.org/abs/quant-ph/0302180v2

Annals of Physics Vol. 313, p. 326 (2004)

Physics

Quantum Physics

References added

Scientific paper

10.1016/j.aop.2004.04.013

A class of quantum channels and completely positive maps (CPMs) are introduced and investigated. These, which we call subspace preserving (SP) CPMs has, in the case of trace preserving CPMs, a simple interpretation as those which preserve probability weights on a given orthogonal sum decomposition of the Hilbert space of a quantum system. Several equivalent characterizations of SP CPMs are proved and an explicit construction of all SP CPMs, is provided. For a subclass of the SP channels a construction in terms of joint unitary evolution with an ancilla system, is presented.

Affiliated with

Also associated with

No associations

Rating

Subspace preserving completely positive maps 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 Subspace preserving completely positive maps, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Subspace preserving completely positive maps will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-482981