Optical detection of a BCS transition of lithium-6 in harmonic traps

被引：27

作者：

Weig, F ^{[1
]}

Zwerger, W ^{[1
]}

机构：

[1] Univ Munich, Sekt Phys, D-80333 Munich, Germany

来源：

EUROPHYSICS LETTERS | 2000年 / 49卷 / 03期

关键词：

D O I：

10.1209/epl/i2000-00146-1

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the detection of a. BCS transition within a sample of lithium-6 atoms confined in a harmonic trap. Using the local density approximation we calculate the pair correlation function in the normal and superfluid state at zero temperature. We show that the softening of the Fermi hole associated with a BCS transition leads to an observable increase in the intensity of off-resonant light scattered from the atomic cloud at small angles.

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页码：282 / 288

页数：7

相关论文

共 21 条

[1] Triplet s-wave resonance in Li-6 collisions and scattering lengths of Li-6 and Li-7 [J].

Abraham, ERI ;

McAlexander, WI ;

Gerton, JM ;

Hulet, RG ;

Cote, R ;

Dalgarno, A .

PHYSICAL REVIEW A, 1997, 55 (05) :R3299-R3302

[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]

BARANOV MA, CONDMAT9901108

[4]

Born M., 1986, PRINCIPLES OPTICS

[5] EVIDENCE OF BOSE-EINSTEIN CONDENSATION IN AN ATOMIC GAS WITH ATTRACTIVE INTERACTIONS [J].

BRADLEY, CC ;

SACKETT, CA ;

TOLLETT, JJ ;

HULET, RG .

PHYSICAL REVIEW LETTERS, 1995, 75 (09) :1687-1690

[6] BCS theory for trapped ultracold fermions [J].

Bruun, G ;

Castin, Y ;

Dum, R ;

Burnett, K .

EUROPEAN PHYSICAL JOURNAL D, 1999, 7 (03) :433-439

[7]

BRUUN GM, CONDMAT9906392

[8] Inhibition of spontaneous emission in Fermi gases [J].

Busch, T ;

Anglin, JR ;

Cirac, JI ;

Zoller, P .

EUROPHYSICS LETTERS, 1998, 44 (01) :1-6

[9] BOSE-EINSTEIN CONDENSATION IN A GAS OF SODIUM ATOMS [J].

DAVIS, KB ;

MEWES, MO ;

ANDREWS, MR ;

VANDRUTEN, NJ ;

DURFEE, DS ;

KURN, DM ;

KETTERLE, W .

PHYSICAL REVIEW LETTERS, 1995, 75 (22) :3969-3973

[10]

de Gennes P. G., 1966, SUPERCONDUCTIVITY ME