Quasipure Bose-Einstein condensate immersed in a Fermi sea - art.no. 080403

被引:755
作者
Schreck, F [1 ]
Khaykovich, L [1 ]
Corwin, KL [1 ]
Ferrari, G [1 ]
Bourdel, T [1 ]
Cubizolles, J [1 ]
Salomon, C [1 ]
机构
[1] Ecole Normale Super, Lab Kastler Brossel, F-75231 Paris 05, France
关键词
D O I
10.1103/PhysRevLett.87.080403
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We report the observation of coexisting Bose-Einstein condensate (BEC) and Fermi gas in a magnetic trap. With a very small fraction of thermal atoms, the Li-7 condensate is quasipure and in thermal contact with a Li-6 Fermi gas. The lowest common temperature is 0.28 muK similar or equal to 0.2(1)T-C = 0.2(1)T-F where T-C is the BEC critical temperature and T-F the Fermi temperature. The Li-7 condensate has a one-dimensional character.
引用
收藏
页码:804031 / 804034
页数:4
相关论文
共 25 条
[1]   Bose-Einstein condensation of lithium: Observation of limited condensate number [J].
Bradley, CC ;
Sackett, CA ;
Hulet, RG .
PHYSICAL REVIEW LETTERS, 1997, 78 (06) :985-989
[2]   Inhibition of spontaneous emission in Fermi gases [J].
Busch, T ;
Anglin, JR ;
Cirac, JI ;
Zoller, P .
EUROPHYSICS LETTERS, 1998, 44 (01) :1-6
[3]   Trapped Fermi gases [J].
Butts, DA ;
Rokhsar, DS .
PHYSICAL REVIEW A, 1997, 55 (06) :4346-4350
[4]   Suppression and enhancement of impurity scattering in a Bose-Einstein condensate [J].
Chikkatur, AP ;
Görlitz, A ;
Stamper-Kurn, DM ;
Inouye, S ;
Gupta, S ;
Ketterle, W .
PHYSICAL REVIEW LETTERS, 2000, 85 (03) :483-486
[5]   Theory of Bose-Einstein condensation in trapped gases [J].
Dalfovo, F ;
Giorgini, S ;
Pitaevskii, LP ;
Stringari, S .
REVIEWS OF MODERN PHYSICS, 1999, 71 (03) :463-512
[6]   Pauli blocking of collisions in a quantum degenerate atomic Fermi gas [J].
DeMarco, B ;
Papp, SB ;
Jin, DS .
PHYSICAL REVIEW LETTERS, 2001, 86 (24) :5409-5412
[7]   Onset of Fermi degeneracy in a trapped atomic gas [J].
DeMarco, B ;
Jin, DS .
SCIENCE, 1999, 285 (5434) :1703-1706
[8]   Exploring a quantum degenerate gas of fermionic atoms [J].
DeMarco, B ;
Jin, DS .
PHYSICAL REVIEW A, 1998, 58 (06) :R4267-R4270
[9]  
DETTMER S, CONDMAT0105525
[10]  
Ebner C., 1970, Phys. Rep., V2, P77