Experimental observation of impossible-to-beat quantum advantage on a hybrid photonic system
Quantum Physics
2012-03-06 v1
Abstract
Quantum resources outperform classical ones for certain communication and computational tasks. Remarkably, in some cases, the quantum advantage cannot be improved using hypothetical postquantum resources. A class of tasks with this property can be singled out using graph theory. Here we report the experimental observation of an impossible-to-beat quantum advantage on a four-dimensional quantum system defined by the polarization and orbital angular momentum of a single photon. The results show pristine evidence of the quantum advantage and are compatible with the maximum advantage allowed using postquantum resources.
Keywords
Cite
@article{arxiv.1203.0980,
title = {Experimental observation of impossible-to-beat quantum advantage on a hybrid photonic system},
author = {Eleonora Nagali and Vincenzo D'Ambrosio and Fabio Sciarrino and Adan Cabello},
journal= {arXiv preprint arXiv:1203.0980},
year = {2012}
}
Comments
REVTeX4, 5 pages, 2 figures