Discrete single-photon quantum walks with tunable decoherence
Quantum Physics
2010-04-21 v2
Abstract
Quantum walks have a host of applications, ranging from quantum computing to the simulation of biological systems. We present an intrinsically stable, deterministic implementation of discrete quantum walks with single photons in space. The number of optical elements required scales linearly with the number of steps. We measure walks with up to 6 steps and explore the quantum-to-classical transition by introducing tunable decoherence. Finally, we also investigate the effect of absorbing boundaries and show that decoherence significantly affects the probability of absorption.
Cite
@article{arxiv.1002.4923,
title = {Discrete single-photon quantum walks with tunable decoherence},
author = {M. A. Broome and A. Fedrizzi and B. P. Lanyon and I. Kassal and A. Aspuru-Guzik and A. G. White},
journal= {arXiv preprint arXiv:1002.4923},
year = {2010}
}
Comments
Published version, 5 pages, 4 figures