Phase-space approach to the study of decoherence in quantum walks

Details Phase-space approach to the study of decoherence in quantum walks Phase-space approach to the study of decoherence in quantum walks

2003-08-20

arxiv.org/abs/quant-ph/0308104v3

Phys. Rev. A 68, 052305 (2003)

Physics

Quantum Physics

Published version; contains some more details about the entropy

Scientific paper

10.1103/PhysRevA.68.052305

We analyze the quantum walk on a cycle using discrete Wigner functions as a way to represent the states and the evolution of the walker. The method provides some insight on the nature of the interference effects that make quantum and classical walks different. We also study the behavior of the system when the quantum coin carried by the walker interacts with an environment. We show that for this system quantum coherence is robust for initially delocalized states of the walker. The use of phase-space representation enables us to develop an intuitive description of the nature of the decoherence process in this system.

Affiliated with

Also associated with

No associations

Rating

Phase-space approach to the study of decoherence in quantum walks 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 Phase-space approach to the study of decoherence in quantum walks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase-space approach to the study of decoherence in quantum walks will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-167373