Congratulations to Peng-Xiang Guo and Rong Ma for their paper published on PRA!
- 发布时间：
- 2026-09-09
- 文章标题：
- Congratulations to Peng-Xiang Guo and Rong Ma for their paper published on PRA!
- 内容：
Two-photon quantum gate based on highly coherent Rydberg-mediated photonic nonlinearity
Optical systems are a promising platform for realizing universal quantum computation. However, photons do not naturally interact, presenting a major challenge for implementing efficient and deterministic multiqubit gates. Here, we propose a coupling scheme between photons and Rydberg atoms that induces strong effective photon-photon interactions with a negligibly small imaginary component. Leveraging this coherent photonic nonlinearity and combining it with the stationary light approach, we design a deterministic two-photon controlled-not gate with significantly improved fidelity compared to previous schemes. This approach could enable additional avenues for universal quantum computation and quantum information processing based on optical systems.