Local transformations of units in Scalar-Tensor Cosmology

Abstract

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.

To appear in the proceedings of IRGAC 2006, 2nd International Conference on Quantum Theories and Renormalization Group in Gravity and Cosmology, Barcelona, July 11-15 2006

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Cited by in corpus (7)

• Einstein and Jordan frames reconciled: a frame-invariant approach to scalar-tensor cosmology
• Invariant quantities in the scalar-tensor theories of gravitation
• Variable gravity Universe
• Conformal equivalence in classical gravity: the example of "veiled" General Relativity
• Jordan frame no-hair for spherical scalar-tensor black holes
• Breakdown of the initial value formulation of scalar-tensor gravity and its physical meaning
• Slow-Roll Inflation in the Jordan Frame