Atomic waveguide QED with atomic dimers

Abstract

Quantum emitters coupled to a waveguide is a paradigm of quantum optics, whose essential properties are described by waveguide quantum electrodynamics (QED). We study the possibility of observing the typical features of the conventional waveguide QED scenario in a system where the role of the waveguide is played by a one-dimensional subwavelength atomic array. For the role of emitters, we propose to use anti-symmetric states of atomic dimers - a pair of closely spaced atoms - as effective two-level systems, which significantly reduces the effect of free-space spontaneous emission. We solve the dynamics of the system both when the dimer frequency lies inside and when it lies outside the band of modes of the array. Along with well-known phenomena of collective emission into the guided modes and waveguide mediated long-range dimer-dimer interactions, we uncover significant non-Markovian corrections which arise from both the finiteness of the array and through retardation effects.

16 pages, 7 figures

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Cited by in corpus (6)

• Dicke superradiance in ordered lattices: dimensionality matters
• Tunable directional emission and collective dissipation with quantum metasurfaces
• Photon-induced droplet-like bound states in one-dimensional qubit array
• Collectively enhanced ground-state cooling in subwavelength atomic arrays
• Exponentially faster preparation of quantum dimers via driven-dissipative stabilization
• Suppression of coherent light scattering in a three-dimensional atomic array