Bose-Einstein condensation of lithium

被引:59
作者
Sackett, CA [1 ]
Bradley, CC [1 ]
Welling, M [1 ]
Hulet, RG [1 ]
机构
[1] RICE UNIV,RICE QUANTUM INST,HOUSTON,TX 77005
来源
APPLIED PHYSICS B-LASERS AND OPTICS | 1997年 / 65卷 / 4-5期
关键词
D O I
10.1007/s003400050293
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Bose-Einstein condensation of Li-7 has been studied in a magnetically trapped gas. Many-body quantum theory predicts that the occupation number of the condensate is limited to about 1400 atoms because of the effectively attractive interactions between Li-7 atoms. Using a versatile phase-constrast imaging technique, we experimentally observe the condensate number to be consistent with this limit. We discuss our measurements, the current theoretical understanding of BEC in a gas with attractive interactions, and future experiments we hope to perform.
引用
收藏
页码:433 / 440
页数:8
相关论文
共 40 条
[1]   SPECTROSCOPIC DETERMINATION OF THE S-WAVE SCATTERING LENGTH OF LITHIUM [J].
ABRAHAM, ERI ;
MCALEXANDER, WI ;
SACKETT, CA ;
HULET, RG .
PHYSICAL REVIEW LETTERS, 1995, 74 (08) :1315-1318
[2]   OBSERVATION OF BOSE-EINSTEIN CONDENSATION IN A DILUTE ATOMIC VAPOR [J].
ANDERSON, MH ;
ENSHER, JR ;
MATTHEWS, MR ;
WIEMAN, CE ;
CORNELL, EA .
SCIENCE, 1995, 269 (5221) :198-201
[3]   Direct, nondestructive observation of a bose condensate [J].
Andrews, MR ;
Mewes, MO ;
vanDruten, NJ ;
Durfee, DS ;
Kurn, DM ;
Ketterle, W .
SCIENCE, 1996, 273 (5271) :84-87
[4]  
[Anonymous], COMMUNICATION
[5]   BOSE-EINSTEIN CONDENSATION IN AN EXTERNAL POTENTIAL [J].
BAGNATO, V ;
PRITCHARD, DE ;
KLEPPNER, D .
PHYSICAL REVIEW A, 1987, 35 (10) :4354-4358
[6]   Ground-state properties of magnetically trapped Bose-condensed rubidium gas [J].
Baym, G ;
Pethick, CJ .
PHYSICAL REVIEW LETTERS, 1996, 76 (01) :6-9
[7]   Hartree-Fock calculations of Bose-Einstein condensation of Li-7 atoms in a harmonic trap for T>0 [J].
Bergeman, T .
PHYSICAL REVIEW A, 1997, 55 (05) :3658-3669
[8]  
BERGMAN T, COMMUNICATION
[9]  
BOHN JL, IN PRESS
[10]  
Born M., 1959, Principles of Optics