Extreme Tunability of Interactions in a 7Li Bose-Einstein Condensate

被引：212

作者：

Pollack, S. E. ^{[1
]}

Dries, D.

Junker, M.

Chen, Y. P.

Corcovilos, T. A.

Hulet, R. G.

机构：

[1] Rice Univ, Dept Phys & Astron, Houston, TX 77005 USA

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 09期

基金：

美国国家科学基金会;

关键词：

MANY-BODY PROBLEM; ANDERSON LOCALIZATION; QUANTUM; SOLITON; LITHIUM; ATOMS;

D O I：

10.1103/PhysRevLett.102.090402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We use a Feshbach resonance to tune the scattering length a of a Bose-Einstein condensate of Li-7 in the vertical bar F=1,m(F)=1 > state. Using the spatial extent of the trapped condensate, we extract a over a range spanning 7 decades from small attractive interactions to extremely strong repulsive interactions. The shallow zero crossing in the wing of the Feshbach resonance enables the determination of a as small as 0.01 Bohr radii. Evidence of the weak anisotropic magnetic dipole interaction is obtained by comparison with different trap geometries for small a.

引用

页数：4

共 35 条

[1] SPECTROSCOPIC DETERMINATION OF THE S-WAVE SCATTERING LENGTH OF LITHIUM
ABRAHAM, ERI
MCALEXANDER, WI
SACKETT, CA
HULET, RG
[J]. PHYSICAL REVIEW LETTERS, 1995, 74 (08) : 1315 - 1318
[2] Triplet s-wave resonance in Li-6 collisions and scattering lengths of Li-6 and Li-7
Abraham, ERI
McAlexander, WI
Gerton, JM
Hulet, RG
Cote, R
Dalgarno, A
[J]. PHYSICAL REVIEW A, 1997, 55 (05) : R3299 - R3302
[3] ABSENCE OF DIFFUSION IN CERTAIN RANDOM LATTICES
ANDERSON, PW
[J]. PHYSICAL REVIEW, 1958, 109 (05): : 1492 - 1505
[4] Direct observation of Anderson localization of matter waves in a controlled disorder
Billy, Juliette
Josse, Vincent
Zuo, Zhanchun
Bernard, Alain
Hambrecht, Ben
Lugan, Pierre
Clement, David
Sanchez-Palencia, Laurent
Bouyer, Philippe
Aspect, Alain
[J]. NATURE, 2008, 453 (7197) : 891 - 894
[5] Quantum corrections to the ground-state energy of a trapped Bose-Einstein condensate: A diffusion Monte Carlo calculation
Blume, D
Greene, CH
[J]. PHYSICAL REVIEW A, 2001, 63 (06): : 6
[6] Bose-Einstein condensation of lithium: Observation of limited condensate number
Bradley, CC
Sackett, CA
Hulet, RG
[J]. PHYSICAL REVIEW LETTERS, 1997, 78 (06) : 985 - 989
[7] Pulsed atomic soliton laser
Carr, LD
Brand, J
[J]. PHYSICAL REVIEW A, 2004, 70 (03): : 033607 - 1
[8] Phase coherence and superfluid-insulator transition in a disordered Bose-Einstein condensate
Chen, Yong P.
Hitchcock, J.
Dries, D.
Junker, M.
Welford, C.
Hulet, R. G.
[J]. PHYSICAL REVIEW A, 2008, 77 (03):
[9] CHIN C, ARXIV08121496, P12707
[10] The potential energy surface for spin-aligned Li3(1 4A′) and the potential energy curve for spin-aligned Li2(a 3Σu+)
Colavecchia, FD
Burke, JP
Stevens, WJ
Salazar, MR
Parker, GA
T Pack, R
[J]. JOURNAL OF CHEMICAL PHYSICS, 2003, 118 (12) : 5484 - 5495

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