Hybrid Trapping of $^{87}$Rb Atoms and Yb$^{+}$ Ions in a Chip-Based Experimental Setup

TL;DR

This paper introduces a novel chip-based hybrid trapping system for $^{87}$Rb atoms and Yb$^{+}$ ions, enabling precise control and integration for quantum experiments.

Contribution

It presents a fully developed ion trap chip and a flat chip trap design that simplifies hybrid trapping of ions and atoms in a compact setup.

Findings

Successfully tested the ion trap with Yb$^{+}$ ions.

Loaded neutral $^{87}$Rb atoms into the setup.

Demonstrated independent adjustment of trap parameters.

Abstract

Hybrid quantum systems that unite laser-cooled trapped ions and ultracold quantum gases in a single experimental setup have opened a rapidly advancing field of study, including Quantum chemistry, polaron physics, quantum information processing and quantum simulations. We present a fully developed and tested ion trap chip and propose a flat chip trap that can be placed beneath the ion trap. This design substantially addresses the difficulties specific to hybrid traps and features well-aligned chips that allow for independent adjustment of the depth of the atomic trap and the confinement and positioning of ions. The ion trap has been successfully tested with linear ion crystals of Yb$^{+}$ and neutral $^{87}$Rb were also loaded into a mMOT a few millimeters under the ion trapping region.