Quantitative comparison between theoretical predictions and experimental results for the BCS-BEC crossover

被引:119
作者
Perali, A [1 ]
Pieri, P [1 ]
Strinati, GC [1 ]
机构
[1] Univ Camerino, Dipartimento Fis, I-62032 Camerino, Italy
关键词
D O I
10.1103/PhysRevLett.93.100404
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Theoretical predictions for the Bardeen-Cooper-Schrieffer-Bose-Einstein condensation crossover of trapped Fermi atoms are compared with recent experimental results for the density profiles of Li-6. The calculations rest on a single theoretical approach that includes pairing fluctuations beyond mean-field. Excellent agreement with experimental results is obtained. Theoretical predictions for the zero-temperature chemical potential and gap at the unitarity limit are also found to compare extremely well with Quantum Monte Carlo simulations and with recent experimental results.
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页码:100404 / 1
页数:4
相关论文
共 32 条
[1]   DEUTERON FORMATION IN EXPANDING NUCLEAR-MATTER FROM A STRONG-COUPLING BCS APPROACH [J].
BALDO, M ;
LOMBARDO, U ;
SCHUCK, P .
PHYSICAL REVIEW C, 1995, 52 (02) :975-985
[2]   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
[3]   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
[4]   Superfluid Fermi gases with large scattering length [J].
Carlson, J ;
Chang, SY ;
Pandharipande, VR ;
Schmidt, KE .
PHYSICAL REVIEW LETTERS, 2003, 91 (05) :504011-504014
[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]   A meeting with Enrico Fermi - How one intuitive physicist rescued a team from fruitless research. [J].
Dyson, F .
NATURE, 2004, 427 (6972) :297-297
[7]   POSSIBLE PAIRING WITHOUT SUPERCONDUCTIVITY AT LOW CARRIER CONCENTRATIONS IN BULK AND THIN-FILM SUPERCONDUCTING SEMICONDUCTORS [J].
EAGLES, DM .
PHYSICAL REVIEW, 1969, 186 (02) :456-&
[8]   EFFECTS OF CONFIGURATION INTERACTION ON INTENSITIES AND PHASE SHIFTS [J].
FANO, U .
PHYSICAL REVIEW, 1961, 124 (06) :1866-&
[9]  
FANO U, 1935, NUOVO CIMENTO, V12, P156
[10]   A UNIFIED THEORY OF NUCLEAR REACTIONS .2. [J].
FESHBACH, H .
ANNALS OF PHYSICS, 1962, 19 (02) :287-313