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APS » Journals » Phys. Rev. Lett. » Volume 86 » Issue 8
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Phys. Rev. Lett. 86, 1418–1421 (2001)

Submillimeter Test of the Gravitational Inverse-Square Law: A Search for “Large” Extra Dimensions

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C. D. Hoyle, U. Schmidt, B. R. Heckel, E. G. Adelberger, J. H. Gundlach, D. J. Kapner, and H. E. Swanson
Department of Physics, University of Washington, Seattle, Washington 98195-1560

Received 23 October 2000; published in the issue dated 19 February 2001

See accompanying Physics Focus

Motivated by higher-dimensional theories that predict new effects, we tested the gravitational 1/r2 law at separations ranging down to 218μm using a 10-fold symmetric torsion pendulum and a rotating 10-fold symmetric attractor. We improved previous short-range constraints by up to a factor of 1000 and find no deviations from Newtonian physics.

© 2001 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.86.1418
DOI:
10.1103/PhysRevLett.86.1418
PACS:
04.80.Cc
 
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