Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.21/525
Título: Self-interacting scalar field cosmologies: unified exact solutions and symmetries
Autor: Charters, T.
Mimoso, J. P.
Palavras-chave: Inflation
Physics of the early universe
Cosmology with extra dimensions
Extra dimensions
Data: Ago-2010
Citação: Charters T, Mimoso J P. Self-interacting scalar field cosmologies: unified exact solutions and symmetries.Journal of Cosmology and Astroparticle Physics. 2010; 8.
Relatório da Série N.º: ;22
Resumo: We investigate a mechanism that generates exact solutions of scalar field cosmologies in a unified way. The procedure investigated here permits to recover almost all known solutions, and allows one to derive new solutions as well. In particular, we derive and discuss one novel solution defined in terms of the Lambert function. The solutions are organised in a classification which depends on the choice of a generating function which we have denoted by x(phi) that reflects the underlying thermodynamics of the model. We also analyse and discuss the existence of form-invariance dualities between solutions. A general way of defining the latter in an appropriate fashion for scalar fields is put forward.
Peer review: yes
URI: http://hdl.handle.net/10400.21/525
ISSN: 1475-7516
Aparece nas colecções:ISEL - Eng. Mecan. - Artigos

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