Was Newton right? A search for non-Newtonian behavior of weak-field gravity

Empirical tests of Einstein’s metric theory of gravitation, even in the non-relativistic, weak-field limit, could play an important role in judging theory-driven extensions of the current Standard Model of fundamental interactions. Guided by Galileo's work and his own experiments, Newton formul...

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Main Authors: Boynton Paul, Moore Michael, Newman Riley, Berg Eric, Bonicalzi Ricco, McKenney Keven
Format: Article
Language:English
Published: EDP Sciences 2014-06-01
Series:EPJ Web of Conferences
Online Access:http://dx.doi.org/10.1051/epjconf/20147404001
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author Boynton Paul
Moore Michael
Newman Riley
Berg Eric
Bonicalzi Ricco
McKenney Keven
author_facet Boynton Paul
Moore Michael
Newman Riley
Berg Eric
Bonicalzi Ricco
McKenney Keven
author_sort Boynton Paul
collection DOAJ
description Empirical tests of Einstein’s metric theory of gravitation, even in the non-relativistic, weak-field limit, could play an important role in judging theory-driven extensions of the current Standard Model of fundamental interactions. Guided by Galileo's work and his own experiments, Newton formulated a theory of gravity in which the force of attraction between two bodies is independent of composition and proportional to the inertia of each, thereby transparently satisfying Galileo's empirically informed conjecture regarding the Universality of Free Fall. Similarly, Einstein honored the manifest success of Newton’s theory by assuring that the linearized equations of GTR matched the Newtonian formalism under “classical” conditions. Each of these steps, however, was explicitly an approximation raised to the status of principle. Perhaps, at some level, Newtonian gravity does not accurately describe the physical interaction between uncharged, unmagnetized, macroscopic bits of ordinary matter. What if Newton were wrong? Detecting any significant deviation from Newtonian behavior, no matter how small, could provide new insights and possibly reveal new physics. In the context of physics as an empirical science, for us this yet unanswered question constitutes sufficient motivation to attempt precision measurements of the kind described here. In this paper we report the current status of a project to search for violation of the Newtonian inverse square law of gravity.
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spelling doaj.art-92f5d4b9f9634aea828b4d7dbd4595f12022-12-21T23:15:54ZengEDP SciencesEPJ Web of Conferences2100-014X2014-06-01740400110.1051/epjconf/20147404001epjconf_iseg2014_04001Was Newton right? A search for non-Newtonian behavior of weak-field gravityBoynton Paul0Moore Michael1Newman Riley2Berg Eric3Bonicalzi Ricco4McKenney Keven5Department of Physics, University of WashingtonDepartment of Physics, University of WashingtonDepartment of Physics, University of California IrvineDepartment of Physics, University of California IrvineDepartment of Physics, University of WashingtonDepartment of Physics, University of WashingtonEmpirical tests of Einstein’s metric theory of gravitation, even in the non-relativistic, weak-field limit, could play an important role in judging theory-driven extensions of the current Standard Model of fundamental interactions. Guided by Galileo's work and his own experiments, Newton formulated a theory of gravity in which the force of attraction between two bodies is independent of composition and proportional to the inertia of each, thereby transparently satisfying Galileo's empirically informed conjecture regarding the Universality of Free Fall. Similarly, Einstein honored the manifest success of Newton’s theory by assuring that the linearized equations of GTR matched the Newtonian formalism under “classical” conditions. Each of these steps, however, was explicitly an approximation raised to the status of principle. Perhaps, at some level, Newtonian gravity does not accurately describe the physical interaction between uncharged, unmagnetized, macroscopic bits of ordinary matter. What if Newton were wrong? Detecting any significant deviation from Newtonian behavior, no matter how small, could provide new insights and possibly reveal new physics. In the context of physics as an empirical science, for us this yet unanswered question constitutes sufficient motivation to attempt precision measurements of the kind described here. In this paper we report the current status of a project to search for violation of the Newtonian inverse square law of gravity.http://dx.doi.org/10.1051/epjconf/20147404001
spellingShingle Boynton Paul
Moore Michael
Newman Riley
Berg Eric
Bonicalzi Ricco
McKenney Keven
Was Newton right? A search for non-Newtonian behavior of weak-field gravity
EPJ Web of Conferences
title Was Newton right? A search for non-Newtonian behavior of weak-field gravity
title_full Was Newton right? A search for non-Newtonian behavior of weak-field gravity
title_fullStr Was Newton right? A search for non-Newtonian behavior of weak-field gravity
title_full_unstemmed Was Newton right? A search for non-Newtonian behavior of weak-field gravity
title_short Was Newton right? A search for non-Newtonian behavior of weak-field gravity
title_sort was newton right a search for non newtonian behavior of weak field gravity
url http://dx.doi.org/10.1051/epjconf/20147404001
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