A new PPN parameter to test Chern-Simons gravity

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dc.creatorAlexander, Stephon
dc.creatorYunes, Nicolas
dc.date2007-03-28
dc.date2007-11-07
dc.date.accessioned2026-07-07T11:23:45Z
dc.date.available2026-07-07T11:23:45Z
dc.descriptionWe study Chern-Simons (CS) gravity in the parameterized post-Newtonian (PPN) framework through a weak-field solution of the modified field equations. We find that CS gravity possesses the same PPN parameters as general relativity, except for the inclusion of a new term, proportional to the CS coupling and the curl of the PPN vector potential. This new term leads to a modification of frame dragging and gyroscopic precession and we provide an estimate of its size. This correction might be used in experiments, such as Gravity Probe B, to bound CS gravity and test string theory.
dc.description4 pages, replaced with version accepted for publication in Phys. Rev. Letters (December, 2007)
dc.identifierhttps://arxiv.org/abs/hep-th/0703265
dc.identifierhttp://arxiv.org/abs/hep-th/0703265
dc.identifierPhys.Rev.Lett.99:241101,2007
dc.identifierdoi:10.1103/PhysRevLett.99.241101
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/194997
dc.subjectHigh Energy Physics - Theory
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleA new PPN parameter to test Chern-Simons gravity
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