Undamped Rabi oscillations due to polaron-emitter hybrid states in
non-linear photonic wave guide coupled to emitters
- URL: http://arxiv.org/abs/2207.10207v1
- Date: Wed, 20 Jul 2022 21:51:09 GMT
- Title: Undamped Rabi oscillations due to polaron-emitter hybrid states in
non-linear photonic wave guide coupled to emitters
- Authors: J. Talukdar and D. Blume
- Abstract summary: We study the collective dynamics of two non-interacting two-level emitters coupled to a structured wave guide.
We identify parameter regimes where the system displays fractional populations and essentially undamped Rabi oscillations.
Our work demonstrates that emitter-photon coupling can lead to an all-to-all momentum space interaction between two-photon bound states and tunable non-Markovian dynamics.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: The collective dynamics of two non-interacting two-level emitters, which are
coupled to a structured wave guide that supports two-photon bound states, is
investigated. Tuning the energy of the two emitters such that they are in
resonance with the two-photon bound state energy band, we identify parameter
regimes where the system displays fractional populations and essentially
undamped Rabi oscillations. The Rabi oscillations, which have no analog in the
single-emitter dynamics, are attributed to the existence of a collective
polaron-like photonic state that is induced by the emitter-photon coupling. The
full dynamics is reproduced by a two-state model, in which the photonic polaron
interacts with the state $|e,e,\text{vac} \rangle$ (two emitters in their
excited state and empty wave guide) through a Rabi coupling frequency that
depends on the emitter separation. Our work demonstrates that emitter-photon
coupling can lead to an all-to-all momentum space interaction between
two-photon bound states and tunable non-Markovian dynamics, opening up a new
direction for emitter arrays coupled to a waveguide.
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