Low-energy three-body recombination near a Feshbach resonance

被引：30

作者：

Kartavtsev, OI ^{[1
]}

Macek, JH

机构：

[1] Joint Inst Nucl Res, Dzhelepov Lab Nucl Problems, Dubna 141980, Russia

[2] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA

[3] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA

来源：

FEW-BODY SYSTEMS | 2002年 / 31卷 / 2-4期

关键词：

D O I：

10.1007/s006010200029

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Ultralow-energy three-body recombination of identical particles with internal degrees of freedom is considered. The study reveals two different mechanisms for recombination enhancement below and above resonance, namely, production of loosely bound dimers for positive scattering length a(B)--> infinity and diminishing of the potential barrier in the entrance channel for negative a(B) --> -infinity. The recombination rate on both sides of a Feshbach resonance is found to diverge as a power of the resonance detuning. The results are in agreement with experimental data.

引用

页码：249 / 254

页数：6

共 19 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] 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

[3] Multichannel cold collisions: Simple dependences on energy and magnetic field [J].

Burke, JP ;

Greene, CH ;

Bohn, JL .

PHYSICAL REVIEW LETTERS, 1998, 81 (16) :3355-3358

[4] High resolution Feshbach spectroscopy of cesium [J].

Chin, C ;

Vuletic, V ;

Kerman, AJ ;

Chu, S .

PHYSICAL REVIEW LETTERS, 2000, 85 (13) :2717-2720

[5] 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

[6] 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

[7] Recombination of three atoms in the ultracold limit [J].

Esry, BD ;

Greene, CH ;

Burke, JP .

PHYSICAL REVIEW LETTERS, 1999, 83 (09) :1751-1754

[8] Three-body recombination of ultracold atoms to a weakly bound s level [J].

Fedichev, PO ;

Reynolds, MW ;

Shlyapnikov, GV .

PHYSICAL REVIEW LETTERS, 1996, 77 (14) :2921-2924

[9] EFIMOV EFFECT IN COORDINATE SPACE FADDEEV-EQUATIONS [J].

FEDOROV, DV ;

JENSEN, AS .

PHYSICAL REVIEW LETTERS, 1993, 71 (25) :4103-4106

[10] Observation of Feshbach resonances in a Bose-Einstein condensate [J].

Inouye, S ;

Andrews, MR ;

Stenger, J ;

Miesner, HJ ;

Stamper-Kurn, DM ;

Ketterle, W .

NATURE, 1998, 392 (6672) :151-154

← 1 2 →