Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Cold atoms close to surfaces: measuring magnetic field roughness and disorder potentials
Physikalisches Institut, Universität Heidelberg, D-69120 Heidelberg, Germany .
Physikalisches Institut, Universität Heidelberg, D-69120 Heidelberg, Germany .
Physikalisches Institut, Universität Heidelberg, D-69120 Heidelberg, Germany .
Physikalisches Institut, Universität Heidelberg, D-69120 Heidelberg, Germany .
Show others and affiliations
2005 (English)In: Journal of Physics, Conference Series, ISSN 1742-6588, E-ISSN 1742-6596, Vol. 19, no 1, 56-65 p.Article in journal (Refereed) Published
Abstract [en]

Microscopic atom optical devices integrated on atom chips allow to precisely control and manipulate ultra-cold ( T < 1 µK) neutral atoms and Bose-Einstein condensates (BECs) close to surfaces. The relevant energy scale of a BEC is extremely small (down to < 10 −11 eV). Consequently, BECs can be utilized as a sensor for variations of the potential energy of the atoms close to the surface. Here we describe how to use trapped atoms as a measurement device and analyze the performance and flexibility of the field sensor. We demonstrate microscopic magnetic imaging with simultaneous high spatial resolution (3 µm) and high field sensitivity (4 nT). With one dimensional BECs, we probe the magnetic field variations close to the surface at distances down to a few microns. Measurements of the magnetic field of a 100 µm wide current carrying wire imply that the magnetic field variations stem from residual variations of the current flow direction, resulting from local properties of the wire. These disorder potentials found near lithographically fabricated wires are two orders of magnitude smaller than those measured close to electroplated conductors.

Place, publisher, year, edition, pages
2005. Vol. 19, no 1, 56-65 p.
National Category
Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:kth:diva-85488DOI: 10.1088/1742-6596/19/1/009ISI: 000233011800009OAI: oai:DiVA.org:kth-85488DiVA: diva2:499946
Note
International Conference on Atoms and Molecules Near Surfaces Location: Int Wissenschaft Forum Ruprech-Karls Univ, Heidelberg, GERMANY, APR 04-08, 2005. QC 20120301Available from: 2012-02-13 Created: 2012-02-13 Last updated: 2017-12-07Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full texthttp://stacks.iop.org/1742-6596/19/i=1/a=009

Search in DiVA

By author/editor
Andersson, L Mauritz
In the same journal
Journal of Physics, Conference Series
Atom and Molecular Physics and Optics

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 98 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf