Effects of Chern-Simons gravity on bodies orbiting the Earth

By Tristan L. Smith, A. Erickcek, R. Caldwell, M. Kamionkowski. 2007

138 citations recorded by the source corpus.

One of the possible low-energy consequences of string theory is the addition of a Chern-Simons term to the standard Einstein-Hilbert action of general relativity. It can be argued that the quintessence field should couple to this Chern-Simons term, and if so, it drives in the linearized theory a parity-violating interaction between the gravito-electric and gravitomagnetic fields. In this paper, the linearized spacetime for Chern-Simons gravity around a massive spinning body is found to include new modifications to the gravitomagnetic field that have not appeared in previous work. The orbits of test bodies and the precession of gyroscopes in this spacetime are calculated, leading to new constraints on the Chern-Simons parameter space due to current satellite experiments.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/eb1c98ca470095ea4d97f3b71a5ec2a15a71ab36

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In Astronomy and Astrophysics

1. N. Yunes
2. S. Alexander
3. Kent Yagi
4. E. Kiritsis
5. G. W. Gibbons
6. Cosimo Bambi
7. Carlos A. R. Herdeiro

In Nuclear and High Energy Physics

1. N. Yunes
2. S. Alexander
3. Kent Yagi
4. E. Kiritsis
5. G. W. Gibbons
6. Cosimo Bambi
7. Carlos A. R. Herdeiro

Citations in the corpus

• Chern-Simons Modified General Relativity (2009, methodology): “The LAGEOS satellites have measured Ω̇ and found it in agreement with GR up to experimental error, which thus allows for a test of non-dynamical CS gravity [37].”