Researchers at the MIT-Harvard Center for ultracold atoms and research laboratory of electronics have proposed a new method for producing 3-D Bose-Einstein condensates using laser cooling only. In their study, featured in Physical Review Letters, they demonstrated the efficacy of their technique in producing Bose-Einstein condensates, achieving temperatures that are well bellow the effective recoil temperature.
Source:
https://phys.org/news/2019-06-method-d-bose-einstein-condensates-laser.html