Multiple packets of neutral molecules revolving for over a mile

TL;DR

This paper demonstrates the long-distance confinement of neutral molecules in a circular electrostatic device, enabling advanced control for potential applications like molecular colliders.

Contribution

It introduces a novel ring structure of electrostatic hexapoles that can store multiple packets of neutral molecules over a mile, a significant advancement in molecular beam control.

Findings

Neutral molecules can be stored over a mile in a circular electrostatic device.

Up to 19 molecular packets can be simultaneously stored.

The setup paves the way for molecular low-energy colliders.

Abstract

The level of control that one has over neutral molecules in beams dictates their possible applications. Here we experimentally demonstrate that state-selected, neutral molecules can be kept together in a few mm long packet for a distance of over one mile. This is accomplished in a circular arrangement of 40 straight electrostatic hexapoles through which the molecules propagate over 1000 times. Up to 19 packets of molecules have simultaneously been stored in this ring structure. This brings the realization of a molecular low-energy collider within reach.