Heteronuclear molecules in an optical dipole trap

被引：92

作者：

Zirbel, J. J. ^{[1
,2
]}

Ni, K. -K. ^{[1
,2
]}

Ospelkaus, S. ^{[1
,2
]}

Nicholson, T. L. ^{[1
,2
]}

Olsen, M. L. ^{[1
,2
]}

Julienne, P. S. ^{[3
,4
]}

Wieman, C. E. ^{[1
,2
]}

Ye, J. ^{[1
,2
]}

Jin, D. S. ^{[1
,2
]}

机构：

[1] Natl Inst Stand & Technol, JILA, Quantum Phys Div, Boulder, CO 80309 USA

[2] Univ Colorado, Dept Phys, Boulder, CO 80309 USA

[3] Natl Inst Stand & Technol, Joint Quantum Inst, Gaithersburg, MD 20899 USA

[4] Univ Maryland, Gaithersburg, MD 20899 USA

来源：

PHYSICAL REVIEW A | 2008年 / 78卷 / 01期

关键词：

D O I：

10.1103/PhysRevA.78.013416

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report on the creation and characterization of heteronuclear (KRb)-K-40-Rb-87 Feshbach molecules in an optical dipole trap. Starting from an ultracold gas mixture of K-40 and Rb-87 atoms, we create as many as 25 000 molecules at 300 nK by rf association. Optimizing the association process, we achieve a conversion efficiency of 25%. We measure the temperature dependence of the rf association process and find good agreement with a phenomenological model that has previously been applied to Feshbach molecule creation by slow magnetic-field sweeps. We also present a measurement of the binding energy of the heteronuclear molecules in the vicinity of the Feshbach resonance and provide evidence for Feshbach molecules as deeply bound as 26 MHz.

引用

页数：7

共 36 条

[11] Observation of heteronuclear Feshbach resonances in a mixture of bosons and fermions [J].

Inouye, S ;

Goldwin, J ;

Olsen, ML ;

Ticknor, C ;

Bohn, JL ;

Jin, DS .

PHYSICAL REVIEW LETTERS, 2004, 93 (18) :183201-1

[12] Pure gas of optically trapped molecules created from fermionic atoms [J].

Jochim, S ;

Bartenstein, M ;

Altmeyer, A ;

Hendl, G ;

Chin, C ;

Denschlag, JH ;

Grimm, R .

PHYSICAL REVIEW LETTERS, 2003, 91 (24)

[13] Production and state-selective detection of ultracold RbCs molecules [J].

Kerman, AJ ;

Sage, JM ;

Sainis, S ;

Bergeman, T ;

DeMille, D .

PHYSICAL REVIEW LETTERS, 2004, 92 (15) :153001-1

[14] Trapping of ultracold polar molecules with a thin-wire electrostatic trap [J].

Kleinert, J. ;

Haimberger, C. ;

Zabawa, P. J. ;

Bigelow, N. P. .

PHYSICAL REVIEW LETTERS, 2007, 99 (14)

[15] Production of cold molecules via magnetically tunable Feshbach resonances [J].

Koehler, Thorsten ;

Goral, Krzysztof ;

Julienne, Paul S. .

REVIEWS OF MODERN PHYSICS, 2006, 78 (04) :1311-1361

[16] Microscopic theory of atom-molecule oscillations in a Bose-Einstein condensate -: art. no. 013601 [J].

Köhler, T ;

Gasenzer, T ;

Burnett, K .

PHYSICAL REVIEW A, 2003, 67 (01) :17

[17] Ab initio calculation of the KRb dipole moments -: art. no. 022501 [J].

Kotochigova, S ;

Julienne, PS ;

Tiesinga, E .

PHYSICAL REVIEW A, 2003, 68 (02) :7

[18]

KOZLOV MG, 1955, J PHYS B ATOM MOL PH, V28, P1933

[19] Simplified system for creating a Bose-Einstein condensate [J].

Lewandowski, HJ ;

Harber, DM ;

Whitaker, DL ;

Cornell, EA .

JOURNAL OF LOW TEMPERATURE PHYSICS, 2003, 132 (5-6) :309-367

[20] Manipulation of Feshbach resonances in ultracold atomic collisions using time-dependent magnetic fields [J].

Mies, FH ;

Tiesinga, E ;

Julienne, PS .

PHYSICAL REVIEW A, 2000, 61 (02) :17

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