Local transformations of units in scalar–tensor cosmology

2006/10/27 by Riccardo Catena, R Catena, Massimo Pietroni +3 · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Noncommutative and Quantum Gravity Theories #hep-th

paper · pdf · doi:10.1088/1751-8113/40/25/s34

published as J.Phys.A40:6883-6888,2007 · 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

arxiv created 2006/10/27 · openalex publication_date 2007/06/06 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30

Abstract

The physical equivalence of Einstein and Jordan frames in scalar–tensor theories was 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.

Citations

• Mach's Principle and a Relativistic Theory of Gravitation

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