Breaking diffeomorphism invariance and tests for the emergence of gravity

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2010-4-01

Author

Anber, Mohamed M.
Aydemir, Ufuk
Donoghue, John F.

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If general relativity is an emergent phenomenon, there may be small violations of diffeomorphism invariance. We propose a phenomenology of perturbatively small violations of general relativity by the inclusion of terms which break general covariance. These can be tested by matching to the parameterized post-Newtonian formalism. The most sensitive tests involve pulsar timing and provide an extremely strong bound, with a dimensionless constraint of order 10(-20) relative to gravitational strength.

URI

https://hdl.handle.net/11511/101020

Journal

PHYSICAL REVIEW D

DOI

https://doi.org/10.1103/physrevd.81.084059

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Department of Physics, Article

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Citation Formats

M. M. Anber, U. Aydemir, and J. F. Donoghue, “Breaking diffeomorphism invariance and tests for the emergence of gravity,” PHYSICAL REVIEW D, vol. 81, no. 8, pp. 0–0, 2010, Accessed: 00, 2022. [Online]. Available: https://hdl.handle.net/11511/101020.