Compact RF resonator for cryogenic ion traps

TL;DR

This paper presents a compact RF resonator designed for cryogenic ion traps, achieving high voltage gain with low power dissipation, enabling stable ion trapping at cryogenic temperatures.

Contribution

The work introduces a lumped-component RF resonator optimized for cryogenic environments, demonstrating high voltage gain and effective ion trapping at low temperatures.

Findings

Achieved a voltage gain of 100 at 5.7 K.

Successfully trapped single calcium ions using the resonator.

Operated with power dissipation below 250 mW.

Abstract

We report on the investigation and implementation of a lumped-component, radio-frequency resonator used in a cryogenic vacuum environment to drive an ion trap. The resonator was required to achieve the voltages necessary to trap (about 100 V), while dissipating as little power as possible (< 250 mW). Ultimately a voltage gain of 100 was measured at 5.7 K. Single calcium ions were confined in a trap driven by this device, providing proof of successful resonator operation at low temperature.