Ultrafast Many-Body Dynamics in an Ultracold Rydberg-Excited Atomic Mott Insulator
Abstract
We report the observation and control of ultrafast non-equilibrium many-body electron dynamics in Rydberg-excited spatially-ordered ultracold atoms created from a three-dimensional unity-filling atomic Mott insulator. By implementing time-domain Ramsey interferometry with attosecond precision in our Rydberg atomic system, we observe picosecond-scale ultrafast many-body dynamics that is essentially governed by the emergence and evolution of many-body correlations between long-range interacting atoms in an optical lattice. We analyze our observations with different theoretical approaches and find that quantum fluctuations have to be included beyond semi-classical descriptions to describe the observed dynamics. Our Rydberg lattice platform combined with an ultrafast approach, which is robust against environmental noises, opens the door for simulating strongly-correlated electron dynamics by long-range van der Waals interaction and resonant dipole-dipole interaction to the charge-overlapping regime in synthetic ultracold atomic crystals.
Keywords
Cite
@article{arxiv.2201.09590,
title = {Ultrafast Many-Body Dynamics in an Ultracold Rydberg-Excited Atomic Mott Insulator},
author = {V. Bharti and S. Sugawa and M. Mizoguchi and M. Kunimi and Y. Zhang and S. de Léséleuc and T. Tomita and T. Franz and M. Weidemüller and K. Ohmori},
journal= {arXiv preprint arXiv:2201.09590},
year = {2023}
}