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Atomic and gravitational clocksAtomic and gravitational clocks are governed by the laws of electrodynamics and gravity, respectively. While the strong equivalence principle (SEP) assumes that the two clocks have been synchronous at all times, recent planetary data seem to suggest a possible violation of the SEP. Past analysis of the implications of an SEP violation on different physical phenomena revealed no disagreement. However, these studies assumed that the two different clocks can be consistently constructed within the framework. The concept of scale invariance, and the physical meaning of different systems of units, are now reviewed and the construction of two clocks that do not remain synchronous - whose rates are related by a non-constant function beta sub a - is demonstrated. The cosmological character of beta sub a is also discussed.
Document ID
19820047235
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Canuto, V. M.
(NASA Goddard Institute for Space Studies; City College New York, NY, United States)
Goldman, I.
(NASA Goddard Institute for Space Studies New York, NY, United States)
Date Acquired
August 10, 2013
Publication Date
April 22, 1982
Publication Information
Publication: Nature
Volume: 296
Subject Category
Physics (General)
Accession Number
82A30770
Distribution Limits
Public
Copyright
Other

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