6533b7dcfe1ef96bd1271fb1
RESEARCH PRODUCT
Atom-field dressed states in slow-light waveguide QED
Francesco CiccarelloPeter RablGiuseppe CalajóDarrick E. Changsubject
---Waveguide (electromagnetism)Field (physics)FOS: Physical sciencesPhysics::OpticsSlow light01 natural sciences010305 fluids & plasmasdressed states.0103 physical sciencesAtomBound statePhysics::Atomic Physics010306 general physicsPhysicsQuantum Physicsbusiness.industryWaveguide QEDatom-photon bound statePhotonicsAtomic physicsQuantum Physics (quant-ph)businesscoupled-cavity arrayExcitationMicrowaveWaveguide QED; coupled-cavity arrays; atom-photon bound states; dressed states.description
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-12-15 |