Molecular Kondo resonance in atomic Fermi gases

被引:28
作者
Falco, GM [1 ]
Duine, RA [1 ]
Stoof, HTC [1 ]
机构
[1] Univ Utrecht, Inst Theoret Phys, NL-3584 CE Utrecht, Netherlands
关键词
D O I
10.1103/PhysRevLett.92.140402
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The usual Kondo effect is associated with the formation of a many-body ground state that contains a quantum-mechanical entanglement between a (localized) fermion and the free fermions. We show, however, that also a bosonic form of the Kondo effect can occur in degenerate atomic Fermi gases near a Feshbach resonance, if the energy of the diatomic molecular level associated with the Feshbach resonance approaches twice the Fermi energy of the atoms.
引用
收藏
页码:140402 / 1
页数:4
相关论文
共 24 条
[11]   Resonance superfluidity in a quantum degenerate Fermi gas [J].
Holland, M ;
Kokkelmans, SJJMF ;
Chiofalo, ML ;
Walser, R .
PHYSICAL REVIEW LETTERS, 2001, 87 (12) :1-120406
[12]   Observation of Feshbach resonances in a Bose-Einstein condensate [J].
Inouye, S ;
Andrews, MR ;
Stenger, J ;
Miesner, HJ ;
Stamper-Kurn, DM ;
Ketterle, W .
NATURE, 1998, 392 (6672) :151-154
[13]  
Mahan G. D., 1990, Many-Particle Physics, DOI 10.1007/978-1-4613-1469-1
[14]   Observation of a strongly interacting degenerate Fermi gas of atoms [J].
O'Hara, KM ;
Hemmer, SL ;
Gehm, ME ;
Granade, SR ;
Thomas, JE .
SCIENCE, 2002, 298 (5601) :2179-2182
[15]   Superfluid transition temperature in a trapped gas of Fermi atoms with a Feshbach resonance [J].
Ohashi, Y ;
Griffin, A .
PHYSICAL REVIEW A, 2003, 67 (03) :18
[16]   BCS-BEC crossover in a gas of Fermi atoms with a Feshbach resonance [J].
Ohashi, Y ;
Griffin, A .
PHYSICAL REVIEW LETTERS, 2002, 89 (13)
[17]   Observation of resonance condensation of fermionic atom pairs [J].
Regal, CA ;
Greiner, M ;
Jin, DS .
PHYSICAL REVIEW LETTERS, 2004, 92 (04) :4
[18]   Measurement of positive and negative scattering lengths in a Fermi gas of atoms [J].
Regal, CA ;
Jin, DS .
PHYSICAL REVIEW LETTERS, 2003, 90 (23) :4
[19]   Quasipure Bose-Einstein condensate immersed in a Fermi sea - art.no. 080403 [J].
Schreck, F ;
Khaykovich, L ;
Corwin, KL ;
Ferrari, G ;
Bourdel, T ;
Cubizolles, J ;
Salomon, C .
PHYSICAL REVIEW LETTERS, 2001, 87 (08) :804031-804034
[20]  
SIECKMANN K, 2002, PHYS REV LETT, V89, P3201