Dynamical response of a Bose-Einstein condensate to a discontinuous change in internal state

被引：255

作者：

Matthews, MR ^{[1
]}

Hall, DS

Jin, DS

Ensher, JR

Wieman, CE

Cornell, EA

Dalfovo, F

Minniti, C

Stringari, S

机构：

[1] Univ Colorado, Joint Inst Lab Astrophys, Boulder, CO 80309 USA

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

[3] Natl Inst Stand & Technol, Boulder, CO 80309 USA

[4] Univ Trent, Dipartimento Fis, I-38050 Trent, Italy

[5] Ist Nazl Fis Mat, I-38050 Trent, Italy

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.81.243

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A two-photon transition is used to convert an arbitrary fraction of the Rb-87 atoms in a \F = 1, m(f) = -1] condensate to the \F = 2, m(f) = 1] state. Transferring the entire population imposes a discontinuous change on the condensate's mean-field repulsion, which leaves a residual ringing in the condensate width. A calculation based on Gross-Pitaevskii theory agrees well with the observed behavior, and from the comparison we obtain the ratio of the intraspecies scattering lengths for the two states, a(\1,)-(1)]/a(\2,1)] = 1.062(12). [S0031-9007(98)06574-0].

引用

页码：243 / 247

页数：5

共 28 条

[11] Bose-Einstein condensation in a dilute gas: Measurement of energy and ground-state occupation [J].

Ensher, JR ;

Jin, DS ;

Matthews, MR ;

Wieman, CE ;

Cornell, EA .

PHYSICAL REVIEW LETTERS, 1996, 77 (25) :4984-4987

[12] Influence of nearly resonant light on the scattering length in low-temperature atomic gases [J].

Fedichev, PO ;

Kagan, Y ;

Shlyapnikov, GV ;

Walraven, JTM .

PHYSICAL REVIEW LETTERS, 1996, 77 (14) :2913-2916

[13] Recent experiments with Bose-condensed gases at JILA [J].

Hall, DS ;

Ensher, JR ;

Jin, DS ;

Matthews, MR ;

Wieman, CE ;

Cornell, EA .

METHODS FOR ULTRASENSITIVE DETECTION, 1998, 3270 :98-106

[14] Emergence of interaction effects in Bose-Einstein condensation [J].

Holland, MJ ;

Jin, DS ;

Chiofalo, ML ;

Cooper, J .

PHYSICAL REVIEW LETTERS, 1997, 78 (20) :3801-3805

[15] Collective excitations of a Bose-Einstein condensate in a dilute gas [J].

Jin, DS ;

Ensher, JR ;

Matthews, MR ;

Wieman, CE ;

Cornell, EA .

PHYSICAL REVIEW LETTERS, 1996, 77 (03) :420-423

[16] Collisional stability of double bose condensates [J].

Julienne, PS ;

Mies, FH ;

Tiesinga, E ;

Williams, CJ .

PHYSICAL REVIEW LETTERS, 1997, 78 (10) :1880-1883

[17] Evolution and global collapse of trapped bose condensates under variations of the scattering length [J].

Kagan, Y ;

Surkov, EL ;

Shlyapnikov, GV .

PHYSICAL REVIEW LETTERS, 1997, 79 (14) :2604-2607

[18] Evolution of a Bose-condensed gas under variations of the confining potential [J].

Kagan, Y ;

Surkov, EL ;

Shlyapnikov, GV .

PHYSICAL REVIEW A, 1996, 54 (03) :R1753-R1756

[19] Predictions for laser-cooled Rb clocks [J].

Kokkelmans, SJJMF ;

Verhaar, BJ ;

Gibble, K ;

Heinzen, DJ .

PHYSICAL REVIEW A, 1997, 56 (06) :R4389-R4392

[20] Bose-Einstein condensation in a tightly confining dc magnetic trap [J].

Mewes, MO ;

Andrews, MR ;

vanDruten, NJ ;

Kurn, DM ;

Durfee, DS ;

Ketterle, W .

PHYSICAL REVIEW LETTERS, 1996, 77 (03) :416-419

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