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arXiv · 2207.08552

Emergent Quasiperiodicity from Polariton-phonon Hybrid Excitations in Waveguide Quantum Optomechanics

Han-Jie Zhu·Xiao-Ming Zhao·Jin-Kui Zhao·Lin Zhuang·Guo-Feng Zhang·Wu-Ming Liu
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Abstract

We investigate polariton-phonon hybrid excitations, which describe the collective excitations of emitter-photon polaritons and vibrational phonons, in a periodic array of vibrating two-level emitters interacting with waveguide photons. We demonstrate the emergence of an interaction-induced quasiperiodic structure caused by the interplay between phonon scatterings and waveguide-mediated long-range couplings. This quasiperiodicity fundamentally changes the excitation characteristics in the subradiant regime, which feature an appearance of topological edge states and a transition between ergodic and multifractal excitations. A possible realization consisting of an array of laser-cooled atoms trapped near an optical nanofiber is also proposed. Our results demonstrate the possibility of utilizing vibrations as a novel degree of freedom in the exploration of many-body physics with waveguide quantum electrodynamics systems.

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Han-Jie Zhu, Xiao-Ming Zhao, Jin-Kui Zhao, Lin Zhuang, Guo-Feng Zhang, Wu-Ming Liu. 2022-07-18. Emergent Quasiperiodicity from Polariton-phonon Hybrid Excitations in Waveguide Quantum Optomechanics. https://arxiv.org/abs/2207.08552

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