期刊
SCIENCE ADVANCES
卷 5, 期 7, 页码 -出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/sciadv.aaw0297
关键词
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资金
- Spanish Ministry of Economy and Competitiveness [MAT2017-86717-P, BES-2015-071573]
- ERC Advanced Grant QENOCOBA under the EU Horizon 2020 program [742102]
- CSIC Research Platform on Quantum Technologies [PTI-001]
- MCIU/AEI/FEDER, EU [PGC2018-094792-B-100]
The discovery of topological materials has motivated recent developments to export topological concepts into photonics to make light behave in exotic ways. Here, we predict several unconventional quantum optical phenomena that occur when quantum emitters interact with a topological waveguide quantum electrodynamics bath, namely, the photonic analog of the Su-Schrieffer-Heeger model. When the emitters' frequency lies within the topological bandgap, a chiral bound state emerges, which is located on just one side (right or left) of the emitter. In the presence of several emitters, this bound state mediates topological, tunable interactions between them, which can give rise to exotic many-body phases such as double Neel ordered states. Furthermore, when the emitters' optical transition is resonant with the bands, we find unconventional scattering properties and different super/subradiant states depending on the band topology. Last, we propose several implementations where these phenomena can be observed with state-of-the-art technology.
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