Decoherence can be useful in quantum walks

Details Decoherence can be useful in quantum walks Decoherence can be useful in quantum walks

2002-08-31

arxiv.org/abs/quant-ph/0209005v3

Pys. Rev. A 67 042315 2003

Physics

Quantum Physics

(Imperial College London) 6 (+epsilon) pages, 6 embedded eps figures, RevTex4. v2 minor changes to correct typos and refs, sub

Scientific paper

10.1103/PhysRevA.67.042315

We present a study of the effects of decoherence in the operation of a discrete quantum walk on a line, cycle and hypercube. We find high sensitivity to decoherence, increasing with the number of steps in the walk, as the particle is becoming more delocalised with each step. However, the effect of a small amount of decoherence is to enhance the properties of the quantum walk that are desirable for the development of quantum algorithms. Specifically, we observe a highly uniform distribution on the line, a very fast mixing time on the cycle, and more reliable hitting times across the hypercube.

Affiliated with

Also associated with

No associations

Rating

Decoherence can be useful 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 Decoherence can be useful in quantum walks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Decoherence can be useful in quantum walks will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-440132