1.
Phys Rev Lett
; 120(12): 123201, 2018 Mar 23.
Article
in English
| MEDLINE
| ID: mdl-29694100
ABSTRACT
We demonstrate one-dimensional sub-Doppler laser cooling of a beam of YbF molecules to 100 µK. This is a key step towards a measurement of the electron's electric dipole moment using ultracold molecules. We compare the effectiveness of magnetically assisted and polarization-gradient sub-Doppler cooling mechanisms. We model the experiment and find good agreement with our data.