Elimination of noise in optically rephased photon echoes
oleh: You-Zhi Ma, Ming Jin, Duo-Lun Chen, Zong-Quan Zhou, Chuan-Feng Li, Guang-Can Guo
| Format: | Article |
|---|---|
| Diterbitkan: | Nature Portfolio 2021-07-01 |
Deskripsi
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.