General relativity and gravitation, 2017-04, Vol.49 (4), p.1-8, Article 55
2017
Details
- Autor(en) / Beteiligte
- Titel
- Repulsive gravity induced by a conformally coupled scalar field implies a bouncing radiation-dominated universe
- Ist Teil von
- General relativity and gravitation, 2017-04, Vol.49 (4), p.1-8, Article 55
- Ort / Verlag
- New York: Springer US
- Erscheinungsjahr
- 2017
- Link zum Volltext
- Quelle
- SpringerNature Journals
- Beschreibungen/Notizen
- In the present work we revisit a model consisting of a scalar field with a quartic self-interaction potential non-minimally (conformally) coupled to gravity (Novello in Phys Lett 90A:347 1980 ). When the scalar field vacuum is in a broken symmetry state, an effective gravitational constant emerges which, in certain regimes, can lead to gravitational repulsive effects when only ordinary radiation is coupled to gravity. In this case, a bouncing universe is shown to be the only cosmological solution admissible by the field equations when the scalar field is in such broken symmetry state.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 0001-7701eISSN: 1572-9532DOI: 10.1007/s10714-017-2219-6Titel-ID: cdi_proquest_journals_1880747295
- Format
- –
- Schlagworte
- Astronomy, Astrophysics and Cosmology, Bouncing, Broken symmetry, Classical and Quantum Gravitation, Differential Geometry, Expanding universe theory, Gravitational constant, Gravitational effects, Mathematical and Computational Physics, Physics, Physics and Astronomy, Quantum Physics, Radiation, Relativity Theory, Research Article, Stratosphere, Symmetry, Theoretical, Universe