Anomalous longitudinal magnetic field near the surface of copper conductors

被引：56

作者：

Kraft, S

Günther, A

Ott, H

Wharam, D

Zimmermann, C

Fortágh, J

机构：

[1] Univ Tubingen, Inst Phys, D-72076 Tubingen, Germany

[2] Univ Tubingen, Inst Angew Phys, D-72076 Tubingen, Germany

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2002年 / 35卷 / 21期

关键词：

D O I：

10.1088/0953-4075/35/21/102

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have used ultracold atoms to characterize the magnetic field near the surface of copper conductors at room temperature carrying currents between 0.045 and 2 A. In addition to the usual circular field we find an additional, 1000-10000 times smaller longitudinal field. The field changes its strength periodically with a period of 200-300 mum.

引用

页码：L469 / L474

页数：6

共 13 条

[1] Free expansion of a Bose-Einstein condensate from an Ioffe-Pritchard magnetic trap [J].

Ernst, U ;

Schuster, J ;

Schreck, F ;

Marte, A ;

Kuhn, A ;

Rempe, G .

APPLIED PHYSICS B-LASERS AND OPTICS, 1998, 67 (06) :719-722

[2]

FEENSTRA L, 2002, 7 WORKSH AT OPT INT, P29

[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] Microelectromagnets for trapping and manipulating ultracold atomic quantum gases [J].

Fortágh, J ;

Ott, H ;

Schlotterbeck, G ;

Zimmermann, C ;

Herzog, B ;

Wharam, D .

APPLIED PHYSICS LETTERS, 2002, 81 (06) :1146-1148

[5]

FORTAGH J, UNPUB APPL PHYS B

[6] Transport of Bose-Einstein condensates with optical tweezers -: art. no. 020401 [J].

Gustavson, TL ;

Chikkatur, AP ;

Leanhardt, AE ;

Görlitz, A ;

Gupta, S ;

Pritchard, DE ;

Ketterle, W .

PHYSICAL REVIEW LETTERS, 2002, 88 (02) :4

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

Hänsel, W ;

Hommelhoff, P ;

Hänsch, TW ;

Reichel, J .

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

[8]

JONES MPA, 2002, 18 INT C AT PHYS CAM, P75

[9]

KIELPINSKI D, 2002, 7 WORKSH AT OPT INT, P1

[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)

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