Elimination of noise in optically rephased photon echoes

Photon echo techniques are difficult to implement in the quantum regime due to coherent and spontaneous emission noise. Here, the authors propose a low-noise photon-echo quantum memory approach based on all-optical control in a four-level system, and demonstrate it using a Eu3+:Y2SiO5 crystal.

Bibliographic Details
Main Authors: You-Zhi Ma, Ming Jin, Duo-Lun Chen, Zong-Quan Zhou, Chuan-Feng Li, Guang-Can Guo
Format: Article
Language:English
Published: Nature Publishing Group 2021-07-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-021-24679-4