249 citations
- Université de SherbrookeCA4 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di TriesteIT2 papers
- Northeastern UniversityUS2 papers
- Scuola Internazionale Superiore di Studi AvanzatiIT2 papers
- Swinburne University of TechnologyAU2 papers
- University of TriesteIT2 papers
- Academy of AthensGR1 paper
- Carnegie Mellon UniversityUS1 paper
- Centre National de la Recherche ScientifiqueFR1 paper
- Chinese Academy of SciencesCN1 paper
- Consejo Superior de Investigaciones CientíficasES1 paper
- Drexel UniversityUS1 paper
Showing 2009 · gr-qcShow all
3 papers · 2 filters
gr-qc2009★ 36 cited
Scalar field mass in generalized gravity
Valerio Faraoni
The notions of mass and range of a Brans-Dicke-like scalar field in scalar-tensor and f(R) gravity are subject to an ambiguity that hides a potential trap. We spell out this ambigu…
gr-qc2009★ 10 cited
Averaging inhomogeneities in scalar-tensor cosmology
Vincenzo Vitagliano, Stefano Liberati, Valerio Faraoni
The backreaction of inhomogeneities on the cosmic dynamics is studied in the context of scalar-tensor gravity. Due to terms of indefinite sign in the non-canonical effective energy…
gr-qc2009★ 4 cited
Gravitationally coupled magnetic monopole and conformal symmetry breaking
Ariel Edery, Luca Fabbri, M. B. Paranjape
We consider a Georgi-Glashow model conformally coupled to gravity. The conformally invariant action includes a triplet of scalar fields and SO(3) non-Abelian gauge fields. However,…