Atom cooling with an atom-optical diode on a ring

TL;DR

This paper introduces a novel atom cooling technique on a ring using an atom diode and a trap, effectively slowing and trapping atoms through a combination of one-way atomic motion control and internal state excitation.

Contribution

The paper presents a new method combining an atom diode with a trap to efficiently cool and trap atoms on a ring, demonstrated through numerical simulations.

Findings

Atoms are efficiently slowed at each diode crossing.

Atoms are successfully trapped when their velocity drops below the trap threshold.

The method demonstrates robust cooling and trapping on a ring geometry.

Abstract

We propose a method to cool atoms on a ring by combining an atom diode -a laser valve for one-way atomic motion which induces robust internal state excitation- and a trap. We demonstrate numerically that the atom is efficiently slowed down at each diode crossing, and it is finally trapped when its velocity is below the trap threshold.