Restricted Proof that the Weak Equivalence Principle Implies the Einstein Equivalence Principle

Lightman, Alan P.; Lee, David L.

doi:10.1103/physrevd.8.364

Cited by 160 publications

(119 citation statements)

References 8 publications

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“…This short exposition, covering but the Schwarzschild and ReissnerNordstrøm metrics and experimental tests of GR, is therefore clearly not exhaustive. Consideration was confined to cases of spherical symmetry and static sources, 4 and important topics such as gravitational radiation and frame-dragging effects were not addressed. Therefore, further exploration and extension of the PV approach to specific problems of interest is encouraged, again with cross-referencing of PV-derived results to those obtained by conventional GR techniques to ensure that the PV approach does not generate incomplete or spurious results.…”

Section: Discussionmentioning

confidence: 99%

“…Detailed analysis shows that it is also a necessary condition in the THεµ formalism for an electromagnetic test body to fall in a gravitational field with a composition-independent acceleration (WEP, or weak equivalence principle, verified by Eötvös-type experiments) [4][5][6]. Finally, this condition must be satisfied by any metric theory of gravity, which constitutes the class of viable gravity theories.…”

Section: Energy In a Vacuum Of Variable Polarizabilitymentioning

confidence: 99%

“…The PV approach treats metric changes in terms of equivalent changes in the permittivity and permeability constants of the vacuum, ε o and µ o , essentially along the lines of the so-called "THεµ" methodology used in comparative studies of gravitational theories [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

“…As elaborated in Refs. [3][4][5][6][7], PV modeling can be carried out in a self-consistent way so as to reproduce to appropriate order both the equations of GR, and the match to the classical experimental tests of those equations. Under conditions of extreme metric perturbation, however, the PV approach predicts certain results at variance with the standard GR approach.…”

Section: Introductionmentioning

confidence: 99%

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Polarizable-Vacuum Approach to General Relativity

Puthoff

2002

Gravitation and Cosmology: From the Hubble Radius to the Planck Scale

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Topics in general relativity (GR) are routinely treated in terms of tensor formulations in curved spacetime. An alternative approach is presented here, based on treating the vacuum as a polarizable medium. Beyond simply reproducing the standard weak-field predictions of GR, the polarizable vacuum (PV) approach provides additional insight into what is meant by a curved metric. For the strong field case, a divergence of predictions in the two formalisms (GR vs. PV) provides fertile ground for both laboratory and astrophysical tests. IntroductionThe principles of General Relativity (GR) are generally formulated in terms of tensor formulations in curved spacetime. Such an approach captures in a concise and elegant way the interaction between masses, and their consequent motion. "Matter tells space how to curve, and space tells matter how to move [1]." During the course of development of GR over the years, however, alternative approaches have emerged that provide convenient methodologies for investigating metric changes in other formalisms, and which yield heuristic insight into what is meant by a curved metric.One approach that has intuitive appeal is the polarizable-vacuum (PV) approach [2-3]. The PV approach treats metric changes in terms of equivalent changes in the permittivity and permeability constants of the vacuum, ε o and µ o , essentially along the lines of the so-called "THεµ" methodology used in comparative studies of gravitational theories [4][5][6].In brief, Maxwell's equations in curved space are treated in the isomorphism of a polarizable medium of variable refractive index in flat space [7]; the bending of a light ray near a massive body is modeled as due to an induced spatial variation in the refractive index of the vacuum near the body; the reduction in the velocity of light in a gravitational potential is represented by an effective increase in the refractive index of the vacuum, and so forth. As elaborated in Refs. [3][4][5][6][7], PV modeling can be carried out in a self-consistent way so as to reproduce to appropriate order both the equations of GR, and the match to the classical experimental tests of those equations. Under conditions of extreme metric perturbation, however, the PV approach predicts certain results at variance with the

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Section: Discussionmentioning

confidence: 99%

Section: Energy In a Vacuum Of Variable Polarizabilitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Polarizable-Vacuum Approach to General Relativity

Puthoff

2002

Gravitation and Cosmology: From the Hubble Radius to the Planck Scale

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“…The T Hǫµ-formalism (see [17,14]) is based on the form of the Lagrangian governing the dynamics of point particles with mass m i and charge q i and of the electromagnetic field in a static, spherically symmetric background gravitational field described by the phenomenological gravitational potentials T , H, ǫ and µ:…”

Section: The T Hǫµ-formalismmentioning

confidence: 99%

Principles of Equivalence: Their Role in Gravitation Physics and Experiments That Test Them

Haugan

Lämmerzahl

Gyros, Clocks, Interferometers...: Testing Relativistic Graviy in Space

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Modern formulations of equivalence principles provide the foundation for an efficient approach to understanding and organizing the structural features of gravitation field theories. Since theories' predictions reflect differences in their structures, principles of equivalence also support an efficient experimental strategy for testing gravitation theories and for exploring the range of conceivable gravitation physics. These principles focus attention squarely on empirical consequences of the fundamental structural differences that distinguish one gravitation theory from another. Interestingly, the variety of such consequences makes it possible to design and perform experiments that test equivalence principles stringently but do so in markedly different ways than the most familiar experimental tests.

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Massebegriff

Gläser¹

1996

Massebestimmung

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Restricted Proof that the Weak Equivalence Principle Implies the Einstein Equivalence Principle

Abstract: Ucn

Cited by 160 publications

References 8 publications

Polarizable-Vacuum Approach to General Relativity

Polarizable-Vacuum Approach to General Relativity

Principles of Equivalence: Their Role in Gravitation Physics and Experiments That Test Them

Massebegriff

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