Mapping the Schrodinger picture of open quantum dynamics

Details Mapping the Schrodinger picture of open quantum dynamics Mapping the Schrodinger picture of open quantum dynamics

2005-05-16

arxiv.org/abs/quant-ph/0505123v3

Phys.Rev. A73 (2006) 012106

Physics

Quantum Physics

10 pages, 3 Figures, Accepted for publication in Phys. Rev. A

Scientific paper

10.1103/PhysRevA.73.012106

For systems described by finite matrices, an affine form is developed for the maps that describe evolution of density matrices for a quantum system that interacts with another. This is established directly from the Heisenberg picture. It separates elements that depend only on the dynamics from those that depend on the state of the two systems. While the equivalent linear map is generally not completely positive, the homogeneous part of the affine maps is, and is shown to be composed of multiplication operations that come simply from the Hamiltonian for the larger system. The inhomogeneous part is shown to be zero if and only if the map does not increase the trace of the square of any density matrix. Properties are worked out in detail for two-qubit examples.

Affiliated with

Also associated with

No associations

Rating

Mapping the Schrodinger picture of open quantum dynamics 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 Mapping the Schrodinger picture of open quantum dynamics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mapping the Schrodinger picture of open quantum dynamics will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-600335