Measurement-induced generation of spatial entanglement in a two-dimensional quantum walk with single-qubit coin
Abstract
One of the proposals for the exploitation of two-dimensional quantum walks has been the efficient generation of entanglement. Unfortunately, the technological effort required for the experimental realization of standard two-dimensional quantum walks is significantly demanding. In this respect, an alternative scheme with less challenging conditions has been recently studied, particularly in terms of spatial-entanglement generation [C. Di Franco, M. Mc Gettrick, and Th. Busch, Phys. Rev. Lett. 106, 080502 (2011)]. Here, we extend the investigation to a scenario where a measurement is performed on the coin degree of freedom after the evolution, allowing a further comparison with the standard two-dimensional Grover walk.
Keywords
Cite
@article{arxiv.1307.2993,
title = {Measurement-induced generation of spatial entanglement in a two-dimensional quantum walk with single-qubit coin},
author = {C. Di Franco and M. Mc Gettrick and T. Machida and Th. Busch},
journal= {arXiv preprint arXiv:1307.2993},
year = {2013}
}
Comments
9 pages, 4 figures, RevTeX4