Simple and fast production of bose-einstein condensate in a 1 μm cross-beam dipole trap

摘要

We demonstrate a fast and efficient all optical realization of an ~(87)Rb Bose-Einstein condensation in a crossed dipole trap formed by a fiber laser with wavelength 1060 nm. Laser cooled Rb atoms were loaded into the cross trap with a relatively high initial phase space density of 7 × 10~(-4) and an efficient evaporation cooling path was used allowing Bose-Einstein condensation to be achieved in about 3 s.