New Post-Newtonian Parameter to Test Chern-Simons Gravity

New post-Newtonian parameter to test Chern-Simons gravity.

We study Chern-Simons (CS) gravity in the parametrized 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 draggi...

Parametrized post-Newtonian expansion of Chern-Simons gravity

W Gravity From Chern–Simons Theory

Starting with three dimensional Chern–Simons theory with gauge group Sl(N, IR), we derive an action Scov invariant under both left and right WN transformations. We give an interpretation of Scov in terms of anomalies, and discuss its relation with Toda theory. e-mail: [email protected] e-mail: [email protected]

Chern–Simons Gravity and Holographic Anomalies

We present a holographic treatment of Chern-Simons (CS) gravity theories in odd dimensions. We construct the associated holographic stress tensor and calculate the Weyl anomalies of the dual CFT. April 2004 ∗ Partially supported by GIF, the German-Israeli Foundation for Scientific Research, Minerva Foundation, the Center for Basic Interactions of the Israeli Academy of Sciences and the Einstein...

A Covariant Formalism for Chern–simons Gravity

Chern–Simons type Lagrangians in d = 3 dimensions are analyzed from the point of view of their covariance and globality. We use the transgression formula to find out a new fully covariant and global Lagrangian for Chern–Simons gravity: the price for establishing globality is hidden in a bimetric (or biconnection) structure. Such a formulation allows to calculate from a global and simpler viewpo...