Perpendicular laser cooling with a rotating wall potential in a Penning trap

TL;DR

This paper demonstrates that incorporating a rotating wall potential in a Penning trap enhances perpendicular laser cooling efficiency, enabling the formation of stable, low-temperature 2D ion crystals crucial for quantum computing.

Contribution

It extends Doppler laser cooling theory to include energy exchange with a rotating wall, showing improved cooling and stability in Penning traps.

Findings

Rotating wall potential improves perpendicular laser cooling efficiency.

Low-temperature, stable 2D ion crystals are achievable with optimal parameters.

Enhanced cooling facilitates quantum information processing applications.

Abstract

We investigate the impact of a rotating wall potential on perpendicular laser cooling in a Penning ion trap. By including energy exchange with the rotating wall, we extend previous Doppler laser cooling theory and show that low perpendicular temperatures are more readily achieved with a rotating wall than without. Detailed numerical studies determine optimal operating parameters for producing low temperature, stable 2-dimensional crystals, important for quantum information processing experiments employing Penning traps.