607 citations
- Universidade de São PauloBR135 papers
- Centre National de la Recherche ScientifiqueFR85 papers
- Universidade Estadual de Campinas (UNICAMP)BR85 papers
- Universidade Federal do ABCBR66 papers
- Centro Brasileiro de Pesquisas FísicasBR65 papers
- Universidade Federal do Rio de JaneiroBR65 papers
- Universidad de Buenos AiresAR62 papers
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- Universidad Nacional Autónoma de MéxicoMX61 papers
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Showing 2008 · gr-qcShow all
3 papers · 2 filters
gr-qc2008★ 36 cited
Constraining non-minimally coupled tachyon fields by Noether symmetry
Rudinei C. de Souza, Gilberto M. Kremer
A model for a spatially flat homogeneous and isotropic Universe whose gravitational sources are a pressureless matter field and a tachyon field non-minimally coupled to the gravita…
gr-qc2008★ 6 cited
Tachyonization of the $\La$CDM cosmological model
Luis P. Chimento, Mónica Forte, Gilberto M. Kremer +1
In this work a tachyonization of the CDM model for a spatially flat Friedmann-Robertson-Walker space-time is proposed. A tachyon field and a cosmological constant are considered…
gr-qc2008★ 65 cited
Noether symmetry for non-minimally coupled fermion fields
Rudinei C. de Souza, Gilberto M. Kremer
A cosmological model where a fermion field is non-minimally coupled with the gravitational field is studied. By applying Noether symmetry the possible functions for the potential d…