Single-Photon Atomic Cooling

TL;DR

This paper introduces a novel atomic cooling method using light that requires only a single photon per atom on average, applicable to atoms or molecules without cycling transitions, enabling new precision measurements.

Contribution

The authors present a general single-photon atomic cooling technique that works without cycling transitions, broadening cooling options for various atomic and molecular species.

Findings

Demonstrated cooling of atomic ensembles with single-photon scattering

Applicable to atoms and molecules lacking cycling transitions

Potential for improved precision spectroscopy and fundamental tests

Abstract

We report the cooling of an atomic ensemble with light, where each atom scatters only a single photon on average. This is a general method that does not require a cycling transition and can be applied to atoms or molecules which are magnetically trapped. We discuss the application of this new approach to the cooling of hydrogenic atoms for the purpose of precision spectroscopy and fundamental tests.