Observation of low-field Feshbach resonances in collisions of cesium atoms

被引：164

作者：

Vuletic, V ^{[1
]}

Kerman, AJ ^{[1
]}

Chin, C ^{[1
]}

Chu, S ^{[1
]}

机构：

[1] Stanford Univ, Dept Phys, Stanford, CA 94305 USA

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.82.1406

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We observe several Feshbach resonances in magnetic fields below 40 G for Cs atoms trapped in a 1D optical lattice. One resonance occurs in the lowest-energy ground state F = 3, m(F) = 3 which is stable against inelastic binary collisions. This opens new possibilities for Bose condensation of Cs. When the elastic collision rate far exceeds the radial vibration frequency, we enter a 2D hydrodynamic regime where the thermalization rate is independent of density and temperature. Other resonances are also observed in the F = 3, m(F) = -3 state through a dramatic increase in the dipolar relaxation rate. [S0031-9007(99)08457-4].

引用

收藏

页码：1406 / 1409

页数：4

相关论文

共 32 条

[1] 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

[2] Observation of a zero-energy resonance in Cs-Cs collisions [J].

Arndt, M ;

BenDahan, M ;

GueryOdelin, D ;

Reynolds, MW ;

Dalibard, J .

PHYSICAL REVIEW LETTERS, 1997, 79 (04) :625-628

[3] Ground-state properties of magnetically trapped Bose-condensed rubidium gas [J].

Baym, G ;

Pethick, CJ .

PHYSICAL REVIEW LETTERS, 1996, 76 (01) :6-9

[4] Laser cooling of cesium atoms in gray optical molasses down to 1.1 mu K [J].

Boiron, D ;

Michaud, A ;

Lemonde, P ;

Castin, Y ;

Salomon, C ;

Weyers, S ;

Szymaniec, K ;

Cognet, L ;

Clairon, A .

PHYSICAL REVIEW A, 1996, 53 (06) :R3734-R3737

[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]

CHIN C, IN PRESS

[7] Observation of a Feshbach resonance in cold atom scattering [J].

Courteille, P ;

Freeland, RS ;

Heinzen, DJ ;

van Abeelen, FA ;

Verhaar, BJ .

PHYSICAL REVIEW LETTERS, 1998, 81 (01) :69-72

[8] 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

[9] A UNIFIED THEORY OF NUCLEAR REACTIONS .2. [J].

FESHBACH, H .

ANNALS OF PHYSICS, 1962, 19 (02) :287-313

[10] An experimental study of the spin-exchange frequency shift in a laser-cooled cesium fountain frequency standard [J].

Ghezali, S ;

Laurent, P ;

Lea, SN ;

Clairon, A .

EUROPHYSICS LETTERS, 1996, 36 (01) :25-30

← 1 2 3 4 →