Local transformations of units in Scalar-Tensor Cosmology

Details Local transformations of units in Scalar-Tensor Cosmology Local transformations of units in Scalar-Tensor Cosmology

2006-10-27

arxiv.org/abs/hep-th/0610292v1

J.Phys.A40:6883-6888,2007

Physics

High Energy Physics

High Energy Physics - Theory

To appear in the proceedings of IRGAC 2006, 2nd International Conference on Quantum Theories and Renormalization Group in Grav

Scientific paper

10.1088/1751-8113/40/25/S34

The physical equivalence of Einstein and Jordan frame in Scalar Tensor theories has been explained by Dicke in 1962: they are related by a local transformation of units. We discuss this point in a cosmological framework. Our main result is the construction of a formalism in which all the physical observables are frame-invariant. The application of this approach to CMB codes is at present under analysis.

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