Photon Sorting, Efficient Bell Measurements and a Deterministic CZ Gate using a Passive Two-level Nonlinearity
Quantum Physics
2016-08-07 v1
Abstract
Although the strengths of optical non-linearities available experimentally have been rapidly increasing in recent years, significant challenges remain to using such non-linearities to produce useful quantum devices such as efficient optical Bell state analysers or universal quantum optical gates. Here we describe a new approach that avoids the current limitations by combining strong non-linearities with active Gaussian operations in efficient protocols for Bell state analysers and Controlled-Sign gates.
Cite
@article{arxiv.1502.04261,
title = {Photon Sorting, Efficient Bell Measurements and a Deterministic CZ Gate using a Passive Two-level Nonlinearity},
author = {T. C. Ralph and I. Söllner and S. Mahmoodian and A. G. White and P. Lodahl},
journal= {arXiv preprint arXiv:1502.04261},
year = {2016}
}