Chameleonic dilaton and conformal transformations

2012/06/20 by Andrea Zanzi, Zanzi, Andrea · 4 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #FOS: Physical sciences #Galaxies: Formation, Evolution, Phenomena #General Relativity and Quantum Cosmology (gr-qc) #High Energy Physics - Phenomenology (hep-ph) #High Energy Physics - Theory (hep-th) #gr-qc #hep-ph #hep-th

paper · pdf · doi:10.48550/arxiv.1206.4463

12 pages. arXiv admin note: text overlap with arXiv:1008.0103, and with arXiv:gr-qc/0410097 by other authors

arxiv created 2012/06/20 · openalex publication_date 2012/06/20 · arxiv updated 2012/06/21 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We recently proposed a chameleonic solution to the cosmological constant problem - Phys. Rev. D82 (2010) 044006. One of the results of that paper is a non-equivalence of different conformal frames at the quantum level. In this letter we further discuss our proposal focusing our attention on the conformal transformation. Moreover, we point out that a different choice of parameters is necessary in the model.

Citations

• Quintessence and the Rest of the World
• Chameleonic dilaton, nonequivalent frames, and the cosmological constant problem in quantum string theory
• Some aspects of the scalar-tensor theory

Cited by

• Dilaton stabilization and composite dark matter in the string frame of heterotic-M-theory
• The cosmological constant problem in heterotic-M-theory and the orbifold of time
• Species, chameleonic strings and the concept of particle
• Quantum mechanics before the big bang in heterotic-M-theory

Related

• Chameleonic equivalence postulate and wave function collapse
• Dilaton: Saving Conformal Symmetry
• The cosmological constant problem in heterotic-M-theory and the orbifold of time
• Spontaneously broken conformal invariance in observables
• Conformal Dilatonic Cosmology