Bose-Einstein Condensation in a Tightly Confining dc Magnetic Trap

M.-O. Mewes, M. R. Andrews, N. J. van Druten, D. M. Kurn, D. S. Durfee, W. Ketterle
1996 Physical Review Letters  
Bose-Einstein condensation of sodium atoms has been observed in a novel "cloverleaf" trap. This trap combines tight confinement with excellent optical access, using only dc electromagnets. Evaporative cooling in this trap produced condensates of 5 3 10 6 atoms, a tenfold improvement over previous results. We measured the condensate fraction and the repulsive mean-field energy, finding agreement with theoretical predictions. [S0031-9007(96)
doi:10.1103/physrevlett.77.416 pmid:10062807 fatcat:rfzo2hkwrrc6heknx4oht5nwhe