A Passive $\mathcal{PT}$-Symmetric Floquet-Coupler
Quantum Physics
2021-06-23 v1
Abstract
Based on a Liouville-space formulation of open systems, we present a solution to the quantum master equation of two coupled optical waveguides with varying loss. The periodic modulation of the Markovian loss of one of them yields a passive -symmetric Floquet system that, at resonance, shows a strong reduction of the required loss for the symmetry to be broken. We showcase this transition for a multi-photon state, and we show how to physically implement the modulated loss with reservoir engineering of a set of bath modes.
Cite
@article{arxiv.2012.11991,
title = {A Passive $\mathcal{PT}$-Symmetric Floquet-Coupler},
author = {Lucas Teuber and Florian Morawetz and Stefan Scheel},
journal= {arXiv preprint arXiv:2012.11991},
year = {2021}
}
Comments
5 pages, 3 figures