Effects of environment correlations on the onset of collective decay in waveguide QED

• URL: http://arxiv.org/abs/2212.01972v1
• Date: Mon, 5 Dec 2022 01:27:41 GMT
• Title: Effects of environment correlations on the onset of collective decay in waveguide QED
• Authors: Alberto Del \'Angel, P. Solano and P. Barberis-Blostein
• Abstract summary: We calculate the dynamics of one and two two-level atoms interacting with the electromagnetic vacuum field in the vicinity of an optical nanofiber. Despite the non-trivial environment, we discuss the validity of approximating the speed of atom-atom communication to the group velocity of the guided field.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We calculate the dynamics of one and two two-level atoms interacting with the electromagnetic vacuum field in the vicinity of an optical nanofiber without making either the Born or the Markov approximations. We use a constant dielectric function and the Drude-Lorentz model, observing deviations from the standard super- and sub-radiant decays. Despite the non-trivial environment correlations, we discuss the validity of approximating the speed of atom-atom communication to the group velocity of the guided field. Our work presents a deeper understanding of the validity of commonly used approximations in recent platforms for quantum optics applications in the context of waveguide QED.

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