Investigation of two-frequency Paul traps for antihydrogen production

TL;DR

This paper explores two-frequency Paul traps that can confine different charged particles simultaneously, potentially advancing antihydrogen production without large magnets by analyzing stability regions and simulating multispecies particle behavior.

Contribution

It introduces the use of two-frequency Paul traps for antihydrogen production and demonstrates their stability and effectiveness through numerical simulations.

Findings

Stable trapping regions identified for two-frequency Paul traps

Simulations show effective confinement of multispecies charged particles

Potential for antihydrogen recombination without large magnets

Abstract

Radio-frequency (rf) Paul traps operated with multifrequency rf trapping potentials provide the ability to independently confine charged particle species with widely different charge-to-mass ratios. In particular, these traps may find use in the field of antihydrogen recombination, allowing antiproton and positron clouds to be trapped and confined in the same volume without the use of large superconducting magnets. We explore the stability regions of two-frequency Paul traps and perform numerical simulations of small, multispecies charged-particle mixtures that indicate the promise of these traps for antihydrogen recombination.