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- Title
Cavity Quantum Electrodynamics with Second‐Order Topological Corner State.
- Authors
Xie, Xin; Zhang, Weixuan; He, Xiaowu; Wu, Shiyao; Dang, Jianchen; Peng, Kai; Song, Feilong; Yang, Longlong; Ni, Haiqiao; Niu, Zhichuan; Wang, Can; Jin, Kuijuan; Zhang, Xiangdong; Xu, Xiulai
- Abstract
Topological photonics provides a new paradigm in studying cavity quantum electrodynamics with robustness to disorder. In this work, the coupling between single quantum dots and the second‐order topological corner state are demonstrated. Based on the second‐order topological corner state, a topological photonic crystal cavity is designed and fabricated into GaAs slabs with quantum dots embedded. The coexistence of corner state and edge state with high quality factor close to 2000 is observed. The enhancement of photoluminescence intensity and emission rate are both observed when the quantum dot is on resonance with the corner state. This result enables the application of topology into cavity quantum electrodynamics, offering an approach to topological devices for quantum information processing.
- Subjects
QUANTUM electrodynamics; QUANTUM dots; QUANTUM information science; QUALITY factor; PHOTONIC crystals
- Publication
Laser & Photonics Reviews, 2020, Vol 14, Issue 8, p1
- ISSN
1863-8880
- Publication type
Article
- DOI
10.1002/lpor.201900425