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arXiv · 1512.04946

Atom-field dressed states in slow-light waveguide QED

Giuseppe Calajo·Francesco Ciccarello·Darrick Chang·Peter Rabl
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Abstract

We discuss the properties of atom-photon bound states in waveguide QED systems consisting of single or multiple atoms coupled strongly to a finite-bandwidth photonic channel. Such bound states are formed by an atom and a localized photonic excitation and represent the continuum analog of the familiar dressed states in single-mode cavity QED. Here we present a detailed analysis of the linear and nonlinear spectral features associated with single- and multi-photon dressed states and show how the formation of bound states affects the waveguide-mediated dipole-dipole interactions between separated atoms. Our results provide a both qualitative and quantitative description of the essential strong-coupling processes in waveguide QED systems, which are currently being developed in the optical and the microwave regime.

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Giuseppe Calajo, Francesco Ciccarello, Darrick Chang, Peter Rabl. 2016-07-06. Atom-field dressed states in slow-light waveguide QED. https://doi.org/10.1103/physreva.93.033833

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