Experimental realization of quantum non-reciprocity based on cold atomic ensembles
Abstract
In analog to counterparts widely used in electronic circuits, all optical non-reciprocal devices are basic building blocks for both classical and quantum optical information processing. Approaching the fundamental limit of such devices, where the propagation of a single photon exhibits a good non-reciprocal characteristic, requires an asymmetric strong coupling between a single photon and a matter. Unfortunately it has been not realized yet. Here, we propose and experimentally realize a quantum non-reciprocity device with low optical losses and a high isolation of larger than 14 dB based on the cold atoms. Besides, the non-reciprocal transmission of a quantum qubit and non-reciprocal quantum storage of a true single photon are also realized. All results achieved would be very promising in building up quantum non-reciprocal devices for quantum networks.
Cite
@article{arxiv.1908.09242,
title = {Experimental realization of quantum non-reciprocity based on cold atomic ensembles},
author = {Ming-Xin Dong and Yi-Chen Yu and Ying-Hao Ye and Wei-Hang Zhang and En-Ze Li and Lei Zeng and Guang-Can Guo and Dong-Sheng Ding and Bao-Sen Shi},
journal= {arXiv preprint arXiv:1908.09242},
year = {2022}
}
Comments
The concept of quantum non-reciprocity is not suitable in this manuscript