All-optical formation of an atomic Bose-Einstein condensate

被引：491

作者：

Barrett, MD ^{[1
]}

Sauer, JA ^{[1
]}

Chapman, MS ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Phys, Atlanta, GA 30332 USA

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.87.010404

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have created a Bose-Einstein condensate (BEC) of Rb-87 atoms directly in an optical trap. We employ a quasielectrostatic dipole force trap formed by two crossed CO2 laser beams. Loading directly from a sub-Doppler laser-cooled cloud of atoms results in initial phase space densities of similar to1/200. Evaporatively cooling through the BEC transition is achieved by lowering the power in the trapping beams over similar to2 s. The resulting condensates are F = 1 spinors with 3.5 x 10(4) atoms distributed between the m(F) = (-1,0, 1) states.

引用

页数：4

共 32 条

[1] EVAPORATIVE COOLING IN A CROSSED DIPOLE TRAP [J].

ADAMS, CS ;

LEE, HJ ;

DAVIDSON, N ;

KASEVICH, M ;

CHU, S .

PHYSICAL REVIEW LETTERS, 1995, 74 (18) :3577-3580

[2] Macroscopic quantum interference from atomic tunnel arrays [J].

Anderson, BP ;

Kasevich, MA .

SCIENCE, 1998, 282 (5394) :1686-1689

[3] 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

[4] LASER COOLING BELOW THE ONE-PHOTON RECOIL ENERGY BY VELOCITY-SELECTIVE COHERENT POPULATION TRAPPING [J].

ASPECT, A ;

ARIMONDO, E ;

KAISER, R ;

VANSTEENKISTE, N ;

COHENTANNOUDJI, C .

PHYSICAL REVIEW LETTERS, 1988, 61 (07) :826-829

[5] Cold and dense cesium clouds in far-detuned dipole traps [J].

Boiron, D ;

Michaud, A ;

Fournier, JM ;

Simard, L ;

Sprenger, M ;

Grynberg, G ;

Salomon, C .

PHYSICAL REVIEW A, 1998, 57 (06) :R4106-R4109

[6] Bose-Einstein condensation of lithium: Observation of limited condensate number [J].

Bradley, CC ;

Sackett, CA ;

Hulet, RG .

PHYSICAL REVIEW LETTERS, 1997, 78 (06) :985-989

[7] 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

[8] Coherence, correlations, and collisions: What one learns about Bose-Einstein condensates from their decay [J].

Burt, EA ;

Ghrist, RW ;

Myatt, CJ ;

Holland, MJ ;

Cornell, EA ;

Wieman, CE .

PHYSICAL REVIEW LETTERS, 1997, 79 (03) :337-340

[9] Stable 85Rb Bose-Einstein condensates with widely tunable interactions [J].

Cornish, SL ;

Claussen, NR ;

Roberts, JL ;

Cornell, EA ;

Wieman, CE .

PHYSICAL REVIEW LETTERS, 2000, 85 (09) :1795-1798

[10] Theory of Bose-Einstein condensation in trapped gases [J].

Dalfovo, F ;

Giorgini, S ;

Pitaevskii, LP ;

Stringari, S .

REVIEWS OF MODERN PHYSICS, 1999, 71 (03) :463-512

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