Article

Abstract

• A magnetically trapped ⁸⁷Rb Bose-Einstein condensate is used as a sensitive probe of short-range electrical forces. In particular, the electric polarization of, and the subsequent electric field generated by, ⁸⁷Rb adsorbates on conducting and insulating surfaces is measured by characterizing perturbations to the magnetic trapping potential using high quality factor condensate excitations. The nature of the alterations to the electrical properties of Rb adsorbates is studied on titanium (metal) and silicon (semiconductor) surfaces, which exhibit nearly identical properties, and on glass (insulator), which displays a smaller transitory electrical effect. The limits of this technique in detecting electrical fields and ramifications for measurements of short-range forces near surfaces are discussed.

Creator

• Harber, D. M.
• Obrecht, John M.
• Cornell, Eric A.
• McGuirk, J. M.

Date Issued

• 2004-06-22

Academic Affiliation

• Physics

Journal Title

• Physical Review A

Journal Issue/Number

• 6

Journal Volume

• 69

File Extent

• 062905-1-062905-6

Ultima modifica

• 2019-12-05

Resource Type

• Article

Dichiarazione dei diritti

• In Copyright

DOI

• 10.1103/PhysRevA.69.062905

ISSN

• 1050-2947

Language

• English [eng]

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