Detecting Optical Channel Non-Reciprocity with Non-Local Quantum Geometric Phase
Quantum Physics
2018-08-29 v1 Optics
Abstract
Non-reciprocal devices are of increasing interest in quantum information technologies. This paper examines whether the presence of a non-reciprocal device in an optical channel is detectable by the communicating parties. We find that a non-reciprocal device such as a Faraday Rotator results in a measurable geometric phase for the light propagating through the channel and that, when using entangled photon pairs, the resulting phase is non-local and robust against malicious manipulation.
Cite
@article{arxiv.1808.09019,
title = {Detecting Optical Channel Non-Reciprocity with Non-Local Quantum Geometric Phase},
author = {James E Troupe and Antia Lamas-Linares},
journal= {arXiv preprint arXiv:1808.09019},
year = {2018}
}