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arXiv · 1808.09019

Detecting Optical Channel Non-Reciprocity with Non-Local Quantum Geometric Phase

James E Troupe·Antia Lamas-Linares
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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.

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James E Troupe, Antia Lamas-Linares. 2018-08-27. Detecting Optical Channel Non-Reciprocity with Non-Local Quantum Geometric Phase. https://arxiv.org/abs/1808.09019

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