Collective Quantum Beats from Distant Multilevel Emitters

Abstract

We analyze the dynamics of quantum beats in a system of two V-type three-level atoms coupled to a waveguide. We show that quantum beats can be collectively enhanced or suppressed, akin to Dicke super- and sub-radiance, depending on the interatomic separation and the initial correlations between the atoms. In particular, the interference properties of the collective beats are determined by the distance between the atoms modulo the beat wavelength. We study the collective atomic and field dynamics, illustrating a crossover from a Markovian to a non-Markovian regime as the atomic separation becomes sufficiently large to bring memory effects of the electromagnetic environment into consideration. In such a non-Markovian regime, collective quantum beats can be enhanced beyond the Markovian limit as a result of retardation effects. Our results demonstrate the rich interplay between multilevel and multiatom quantum interference effects arising in a system of distant quantum emitters.

12 pages(including appendices), 6 figures

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• Photon-mediated interactions between distant artificial atoms
• Tunable coupling in circuit quantum electrodynamics with a superconducting V-system
• Non-Markovian super-superradiance in a linear chain of up to 100 qubits
• Photon-Mediated Interaction between Two Distant Atoms
• Controlling collective spontaneous emission with plasmonic waveguides
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Cited by in corpus (4)

• Delay-induced spontaneous dark state generation from two distant excited atoms
• Time-dependent spectra of quantum beats
• Quantum interference in the resonance fluorescence of a $J=1/2$-$J^{\prime }=1/2$ atomic system: Quantum beats, nonclassicality, and non-Gaussianity
• Distance-dependent emission spectrum from two qubits in a strong-coupling regime