Tank-Circuit Assisted Coupling Method for Sympathetic Laser Cooling

TL;DR

This paper introduces a tank-circuit assisted coupling method for ions in separate Penning traps, enabling efficient sympathetic cooling by tuning coupling strength, demonstrated through avoided crossing measurements and supported by a theoretical model.

Contribution

It presents a novel technique to tune ion coupling in separate traps, enhancing sympathetic cooling for high-precision Penning-trap experiments.

Findings

Demonstrated coupling enhancement via avoided crossing behavior

Proposed an intermittent laser cooling method for sympathetic cooling

Provided a theoretical framework for the coupling technique

Abstract

We discuss the coupling of the motion of two ion species in separate Penning traps via a common tank circuit. The enhancement of the coupling assisted by the tank circuit is demonstrated by an avoided crossing behavior measurement of the motional modes of two coupled ions. We propose an intermittent laser cooling method for sympathetic cooling and provide a theoretical description. The technique enables tuning of the coupling strength between two ion species in separate traps and thus allows for efficient sympathetic cooling of an arbitrary type of single ion for high-precision Penning-trap experiments.