Topological quantum optics using atom-like emitter arrays coupled to photonic crystals

10 Apr 2019  ·  Perczel Janos, Borregaard Johannes, Chang Darrick E., Yelin Susanne F., Lukin Mikhail D. ·

We propose a nanophotonic platform for topological quantum optics. Our system is composed of a two-dimensional lattice of non-linear quantum emitters with optical transitions embedded in a photonic crystal slab... The emitters interact through the guided modes of the photonic crystal, and a uniform magnetic field gives rise to large topological band gaps and an almost completely flat topological band. Topological edge states arise on the boundaries of the system that are protected by the large gap against missing lattice sites and to the inhomogeneous broadening of emitters. These results pave the way for exploring topological many-body states in quantum optical systems. read more

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Quantum Physics Atomic Physics Optics