Sodium Bose-Einstein Condensates in the F = 2 State in a Large-Volume Optical Trap
2003; American Physical Society; Volume: 90; Issue: 9 Linguagem: Inglês
10.1103/physrevlett.90.090401
ISSN1092-0145
AutoresAxel Görlitz, T. L. Gustavson, A. E. Leanhardt, R. Löw, A. P. Chikkatur, Subhadeep Gupta, S. Inouye, David E. Pritchard, Wolfgang Ketterle,
Tópico(s)Spectroscopy and Laser Applications
ResumoWe have investigated the properties of Bose-Einstein condensates of sodium atoms in the upper hyperfine ground state. Condensates in the high-field seeking [F=2, m(F)=-2> state were created in a large volume optical trap from initially prepared [F=1, m(F)=-1> condensates using a microwave transition at 1.77 GHz. We found condensates in the stretched state [F=2, m(F)=-2> to be stable for several seconds at densities in the range of 10(14) atoms/cm(3). In addition, we studied the clock transition [F=1, m(F)=0> --> [F=2, m(F)=0> in a sodium Bose-Einstein condensate and determined a density-dependent frequency shift of (2.44+/-0.25+/-0.5) x 10(-12) Hz cm(3).
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