Short Distance Tests of the Inverse Square Law

Details Short Distance Tests of the Inverse Square Law Short Distance Tests of the Inverse Square Law

Apr 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aps..apr.f2004h&link_type=abstract

American Physical Society, April Meeting, 2003, April 5-8, 2003 Philadelphia, Pennsylvania, MEETING ID: APR03, abstract #F2.004

Astronomy and Astrophysics

Astronomy

Scientific paper

It has been traditional to assume that the inverse square law of Newtonian gravity is valid down to the Planck scale although experiments have only tested the law from astronomical scales down to a millimeter. The possibility of large hidden dimensions, motivated by string theories, suggest that gravity might become stronger at sub-millimeter lengths and the dark energy that fuels the accelerating expansion of the universe may be explained by gravity becoming weaker at a length scale of 100 microns. Our group has recently completed a test of the inverse square law that is sensitive to forces as strong as gravity at a distance of 70 microns. These results and the status of new measurements in progress will be presented.

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