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Phonon-assisted coherent transport of excitations in Rydberg-dressed atom arrays by Kosior, Arkadiusz; Kokkelmans, Servaas; Lewenstein, Maciej; Zakrzewski, Jakub; Płodzień, Marcin is a scholarly article available to read on EtoBox.

What is Phonon-assisted coherent transport of excitations in Rydberg-dressed atom arrays about?

Polarons, which arise from the self-trapping interaction between electrons and lattice distortions in a solid, have been known and extensively investigated for nearly a century. Nevertheless, the study of polarons continues to be an active and evolving field, with ongoing advancements in both fundamental understanding and practical applications. Here, we present a microscopic model that exhibits a diverse range of dynamic behavior, arising from the intricate interplay between two excitation-phonon coupling terms. The derivation of the model is based on an experimentally feasible Rydberg-dressed system with dipole-dipole interactions, making it a promising candidate for realization in a Rydberg atoms quantum simulator. Remarkably, our analysis reveals a growing asymmetry in Bloch oscillations, leading to a macroscopic transport of non-spreading excitations under a constant force. Moreover, we compare the behavior of excitations, when coupled to either acoustic or optical phonons, and demonstrate the robustness of our findings against on-site random potential. Overall, this work contributes to the understanding of polaron dynamics with their potential applications in coherent quantum

Author

Kosior, Arkadiusz; Kokkelmans, Servaas; Lewenstein, Maciej; Zakrzewski, Jakub; Płodzień, Marcin

Published

2023

Language

EN