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
收藏
页码：L469 / L474
页数：6
相关论文
共 13 条
  • [1] Free expansion of a Bose-Einstein condensate from an Ioffe-Pritchard magnetic trap
    Ernst, U
    Schuster, J
    Schreck, F
    Marte, A
    Kuhn, A
    Rempe, G
    [J]. 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
    Fortágh, J
    Ott, H
    Kraft, S
    Günther, A
    Zimmermann, C
    [J]. PHYSICAL REVIEW A, 2002, 66 (04): : 4
  • [4] Microelectromagnets for trapping and manipulating ultracold atomic quantum gases
    Fortágh, J
    Ott, H
    Schlotterbeck, G
    Zimmermann, C
    Herzog, B
    Wharam, D
    [J]. 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
    Gustavson, TL
    Chikkatur, AP
    Leanhardt, AE
    Görlitz, A
    Gupta, S
    Pritchard, DE
    Ketterle, W
    [J]. PHYSICAL REVIEW LETTERS, 2002, 88 (02) : 4
  • [7] Bose-Einstein condensation on a microelectronic chip
    Hänsel, W
    Hommelhoff, P
    Hänsch, TW
    Reichel, J
    [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
    Leanhardt, AE
    Chikkatur, AP
    Kielpinski, D
    Shin, Y
    Gustavson, TL
    Ketterle, W
    Pritchard, DE
    [J]. PHYSICAL REVIEW LETTERS, 2002, 89 (04)
12