Bose-Einstein Condensation of 84-Sr

TL;DR

This paper reports the successful creation of a large Bose-Einstein condensate of 84-Sr using laser cooling and optical trapping, despite the isotope's low natural abundance, demonstrating effective techniques for quantum gas production.

Contribution

The study demonstrates efficient Bose-Einstein condensation of 84-Sr with large atom numbers, leveraging narrow-line cooling and favorable scattering properties, advancing quantum gas research.

Findings

Achieved Bose-Einstein condensation of 84-Sr with ~3x10^5 atoms.

Utilized narrow intercombination line for efficient laser cooling.

Condensation observed through low-velocity component in time-of-flight images.

Abstract

We report Bose-Einstein condensation of 84-Sr in an optical dipole trap. Efficient laser cooling on the narrow intercombination line and an ideal s-wave scattering length allow creation of large condensates (N0 ~ 3x10^5) even though the natural abundance of this isotope is only 0.6%. Condensation is heralded by the emergence of a low-velocity component in time-of-flight images.