Abstract
Publicly available clock correction data from the Global Positioning System was analyzed and used in combination with the results of terrestrial clock comparison experiments to confirm the local position invariance (LPI) of Planck’s constant within the context of general relativity. The results indicate that is invariant within a limit of , where is a dimensionless parameter that represents the extent of LPI violation.
- Received 1 December 2011
DOI:https://doi.org/10.1103/PhysRevLett.108.110801
© 2012 American Physical Society
Synopsis
Pinpointing Planck’s Constant with GPS
Published 15 March 2012
Using the orbiting network of GPS satellites, researchers have placed new limits on how much Planck’s constant varies with respect to relativistic changes.
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