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Proving the Principle: Taking Geodesic Dynamics too Seriously in Einstein's Theory

Tamir, Michael (2012) Proving the Principle: Taking Geodesic Dynamics too Seriously in Einstein's Theory. [Published Article or Volume]

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Abstract

In this paper I critically review the long history of attempts to formulate and derive the geodesic principle, which claims that massive bodies follow geodesic paths in general relativity theory. I argue that if the principle is (canonically) interpreted as a dynamical law of motion describing the actual evolution of gravitating bodies as endorsed by Einstein, then it is impossible to apply the law to massive bodies in a way that is coherent with his own field equations. Rejecting this canonical interpretation, I propose an alternative interpretation of the geodesic principle as a type of universality thesis analogous to the universality behavior exhibited in thermal systems during phase transitions.


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Item Type: Published Article or Volume
Creators:
CreatorsEmailORCID
Tamir, Michaelmnt4@pitt.edu
Keywords: geodesic principle, universality, law of motion, idealization, approximation, Einstein, general relativity, dynamical law, phase transitions, distributions
Subjects: General Issues > Explanation
Specific Sciences > Physics > Fields and Particles
General Issues > Laws of Nature
General Issues > Models and Idealization
Specific Sciences > Physics > Relativity Theory
Depositing User: Michael Tamir
Date Deposited: 11 Jun 2012 13:33
Last Modified: 11 Jun 2012 13:33
Item ID: 9158
Journal or Publication Title: Studies in History and Philosophy of Modern Physics
Publisher: Elsevier
Official URL: http://www.sciencedirect.com/science/article/pii/S...
DOI or Unique Handle: 10.1016/j.shpsb.2011.12.002
URI: http://philsci-archive.pitt.edu/id/eprint/9158

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