Scattering properties of weakly bound dimers of fermionic atoms

被引:143
作者
Petrov, DS [1 ]
Salomon, C
Shlyapnikov, GV
机构
[1] Harvard Univ, Harvard Smithsonian Ctr Astrophys, ITAMP, Cambridge, MA 02138 USA
[2] Harvard Univ, Dept Phys, Harvard MIT Ctr Ultracold Atoms, Cambridge, MA 02138 USA
[3] Univ Calif Santa Barbara, Kavli Inst Theoret Phys, Santa Barbara, CA 93106 USA
[4] Russian Res Ctr, Kurchatov Inst, Moscow 123182, Russia
[5] Ecole Normale Super, Lab Kastler Brossel, F-75005 Paris, France
[6] Univ Paris 11, Lab Phys Theor & Modeles Stat, F-91405 Orsay, France
[7] Univ Amsterdam, Van der Waals Zeeman Inst, NL-1018 XE Amsterdam, Netherlands
来源
PHYSICAL REVIEW A | 2005年 / 71卷 / 01期
关键词
D O I
10.1103/PhysRevA.71.012708
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
. We consider weakly bound diatomic molecules (dimers) formed in a two-component atomic Fermi gas with a large positive scattering length for the interspecies interaction. We develop a theoretical approach for calculating atom-dimer and dimer-dimer elastic scattering and for analyzing the inelastic collisional relaxation of the molecules into deep bound states. This approach is based on the single-channel zero-range approximation, and we find that it is applicable in the vicinity of a wide two-body Feshbach resonance. Our results draw prospects for various interesting manipulations of weakly bound dimers of fermionic atoms.
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页数:15
相关论文
共 71 条
[1]   Equation of state of a Fermi gas in the BEC-BCS crossover: A quantum Monte Carlo study [J].
Astrakharchik, GE ;
Boronat, J ;
Casulleras, J ;
Giorgini, S .
PHYSICAL REVIEW LETTERS, 2004, 93 (20) :200404-1
[2]   Collective excitations of a degenerate gas at the BEC-BCS crossover [J].
Bartenstein, M ;
Altmeyer, A ;
Riedl, S ;
Jochim, S ;
Chin, C ;
Denschlag, JH ;
Grimm, R .
PHYSICAL REVIEW LETTERS, 2004, 92 (20) :203201-1
[3]   Crossover from a molecular Bose-Einstein condensate to a degenerate Fermi gas [J].
Bartenstein, M ;
Altmeyer, A ;
Riedl, S ;
Jochim, S ;
Chin, C ;
Denschlag, JH ;
Grimm, R .
PHYSICAL REVIEW LETTERS, 2004, 92 (12) :120401-1
[4]  
Bethe H., 1935, P ROY SOC A-MATH PHY, V148, P146, DOI 10.1098/rspa.1935.0010
[5]   Semianalytic theory of laser-assisted resonant cold collisions [J].
Bohn, JL ;
Julienne, PS .
PHYSICAL REVIEW A, 1999, 60 (01) :414-425
[6]   Experimental study of the BEC-BCS crossover region in lithium 6 [J].
Bourdel, T ;
Khaykovich, L ;
Cubizolles, J ;
Zhang, J ;
Chevy, F ;
Teichmann, M ;
Tarruell, L ;
Kokkelmans, SJJMF ;
Salomon, C .
PHYSICAL REVIEW LETTERS, 2004, 93 (05) :050401-1
[7]   Measurement of the interaction energy near a feshbach resonance in a 6Li Fermi gas -: art. no. 020402 [J].
Bourdel, T ;
Cubizolles, J ;
Khaykovich, L ;
Magalhaes, KMF ;
Kokkelmans, SJJMF ;
Shlyapnikov, GV ;
Salomon, C .
PHYSICAL REVIEW LETTERS, 2003, 91 (02)
[8]   Capture of slow neutrons [J].
Breit, G ;
Wigner, E .
PHYSICAL REVIEW, 1936, 49 (07) :0519-0531
[9]   Universality of a two-component Fermi gas with a resonant interaction [J].
Bruun, GM .
PHYSICAL REVIEW A, 2004, 70 (05) :053602-1
[10]   Effective theory of Feshbach resonances and many-body properties of Fermi gases [J].
Bruun, GM ;
Pethick, CJ .
PHYSICAL REVIEW LETTERS, 2004, 92 (14) :140404-1