Decoherence in one-dimensional Quantum Walk
Quantum Physics
2010-03-26 v1
Abstract
In this paper we study decoherence in the quantum walk on the line. We generalize the method of decoherent coin quantum walk, introduced by Brun et al [Phys. Rev. A {\bf 67}, 32304 (2003)]. Our analytical expressions are applicable for all kinds of decoherence. As an example of the coin-position decoherence, we study the broken line quantum walk and compare our results with the numerical one. We also show that our analytical results reduce to the Brun formalism when only the coin is subjected to decoherence.
Keywords
Cite
@article{arxiv.0910.1986,
title = {Decoherence in one-dimensional Quantum Walk},
author = {Mostafa Annabestani and Seyed Javad Akhtarshenas and Mohamad Reza Abolhassani},
journal= {arXiv preprint arXiv:0910.1986},
year = {2010}
}
Comments
11 pages, 2 figures