Artigo Acesso aberto Revisado por pares

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

ISSN

1092-0145

Autores

Axel 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

Resumo

We 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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