Observation of quantum dynamical oscillations of ultracold atoms in the F and D bands of an optical lattice

TL;DR

This paper reports the observation of quantum dynamical oscillations of ultracold atoms in specific bands of an optical lattice, demonstrating control over their quantum states and dynamics using a novel non-adiabatic loading technique.

Contribution

It introduces a new non-adiabatic method to load ultracold atoms into the G-band and demonstrates control over quantum oscillations in F and D bands of an optical lattice.

Findings

Controlled Bragg reflections up to third order at the Brillouin zone edge.

Ability to switch between oscillations across F and D bands and within F-band.

Observation of quantum dynamical oscillations in ultracold atomic gases.

Abstract

We report the observation of quantum dynamical oscillations of ultracold atomic gases in the F and D bands of a single-well optical lattice. We are able to control the Bragg reflections at the Brillouin zone edge up to the third order. As a result, we can switch the quantum dynamics from oscillations across both the F and D bands to oscillations only within the F-band. Our capability to observe these remarkable oscillations comes from the innovative non-adiabatic technique which allows us to load ultracold atoms efficiently to the G-band of an optical lattice.