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      Atom-field dressed states in slow-light waveguide QED

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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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          Author and article information

          Journal
          2015-12-15
          2016-03-18
          Article
          10.1103/PhysRevA.93.033833
          1512.04946
          ee6a2376-5bab-4b3e-9938-07b805d532f9

          http://arxiv.org/licenses/nonexclusive-distrib/1.0/

          History
          Custom metadata
          Phys. Rev. A 93, 033833 (2016)
          17 pages, 12 figures
          quant-ph

          Quantum physics & Field theory
          Quantum physics & Field theory

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