Title : ( Decoherence in a one-dimensional quantum walk )
Authors: Mostafa Annabestani , Seyed Javad Akhtarshenas , Mohamad Reza Abolhassani ,
Full TextAbstract
In this article we study decoherence in the discrete-time quantum walk on the line. We generalize the method of decoherent coin quantum walk, introduced by Brun et al. [Phys. Rev. A 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
, Quantum walk, Coin-position decoherence, Discrete time
@article{paperid:1039126,
author = {Mostafa Annabestani and Akhtarshenas, Seyed Javad and Mohamad Reza Abolhassani},
title = {Decoherence in a one-dimensional quantum walk},
journal = {Physical Review A},
year = {2010},
volume = {83},
number = {4},
month = {April},
issn = {2469-9926},
pages = {323211--323219},
numpages = {8},
keywords = {Quantum walk; Coin-position decoherence; Discrete time},
}
%0 Journal Article
%T Decoherence in a one-dimensional quantum walk
%A Mostafa Annabestani
%A Akhtarshenas, Seyed Javad
%A Mohamad Reza Abolhassani
%J Physical Review A
%@ 2469-9926
%D 2010
