Bose-Einstein condensates near a microfabricated surface

被引：112

作者：

Leanhardt, AE ^{[1
]}

Shin, Y

Chikkatur, AP

Kielpinski, D

Ketterle, W

Pritchard, DE

机构：

[1] MIT, Dept Phys, MIT Harvard Ctr Ultracold Atoms, Cambridge, MA 02139 USA

[2] MIT, Elect Res Lab, Cambridge, MA 02139 USA

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 90卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.90.100404

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Magnetically and optically confined Bose-Einstein condensates were studied near a microfabricated surface. Condensate fragmentation observed in microfabricated magnetic traps was not observed in optical dipole traps at the same location. The measured condensate lifetime was greater than or equal to20 s and independent of the atom-surface separation under both magnetic and optical confinement. Radio-frequency spin-flip transitions driven by technical noise were directly observed for optically confined condensates and could limit the condensate lifetime in microfabricated magnetic traps.

引用

页数：4

共 18 条

[1] Guiding neutral atoms on a chip [J].

Dekker, NH ;

Lee, CS ;

Lorent, V ;

Thywissen, JH ;

Smith, SP ;

Drndic, M ;

Westervelt, RM ;

Prentiss, M .

PHYSICAL REVIEW LETTERS, 2000, 84 (06) :1124-1127

[2] Controlling cold atoms using nanofabricated surfaces:: Atom chips [J].

Folman, R ;

Krüger, P ;

Cassettari, D ;

Hessmo, B ;

Maier, T ;

Schmiedmayer, J .

PHYSICAL REVIEW LETTERS, 2000, 84 (20) :4749-4752

[3] Surface effects in magnetic microtraps -: art. no. 041604 [J].

Fortágh, J ;

Ott, H ;

Kraft, S ;

Günther, A ;

Zimmermann, C .

PHYSICAL REVIEW A, 2002, 66 (04) :4

[4] Bose-Einstein condensation on a microelectronic chip [J].

Hänsel, W ;

Hommelhoff, P ;

Hänsch, TW ;

Reichel, J .

NATURE, 2001, 413 (6855) :498-501

[5] Loss and heating of particles in small and noisy traps [J].

Henkel, C ;

Pötting, S ;

Wilkens, M .

APPLIED PHYSICS B-LASERS AND OPTICS, 1999, 69 (5-6) :379-387

[6] Heating of trapped atoms near thermal surfaces [J].

Henkel, C ;

Wilkens, M .

EUROPHYSICS LETTERS, 1999, 47 (04) :414-420

[7] Magnetic atom optics: mirrors, guides, traps, and chips for atoms [J].

Hinds, EA ;

Hughes, IG .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1999, 32 (18) :R119-R146

[8]

JONES MPA, QUANTPH0301018

[9] Anomalous longitudinal magnetic field near the surface of copper conductors [J].

Kraft, S ;

Günther, A ;

Ott, H ;

Wharam, D ;

Zimmermann, C ;

Fortágh, J .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2002, 35 (21) :L469-L474

[10] Propagation of Bose-Einstein condensates in a magnetic waveguide [J].

Leanhardt, AE ;

Chikkatur, AP ;

Kielpinski, D ;

Shin, Y ;

Gustavson, TL ;

Ketterle, W ;

Pritchard, DE .

PHYSICAL REVIEW LETTERS, 2002, 89 (04)

← 1 2 →