Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/24470
Título: | Spherical linear waves in de Sitter spacetime |
Autor(es): | Costa, João Alho, Artur Natário, José |
Data: | 2012 |
Editora: | AIP Publishing |
Revista: | Journal of Mathematical Physics |
Resumo(s): | We apply Christodoulou's framework, developed to study the Einstein-scalar eld equations in spherical symmetry, to the linear wave equation in de Sitter spacetime, as a rst step towards the Einstein-scalar eld equations with positive cosmological constant. We obtain an integro-di erential evolution equation which we solve by taking initial data on a null cone. As a corollary we obtain elementary derivations of expected properties of linear waves in de Sitter spacetime: boundedness in terms of (characteristic) initial data, and a Price law establishing uniform exponential decay, in Bondi time, to a constant. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/24470 |
DOI: | 10.1063/1.4721644 |
ISSN: | 0022-2488 |
Versão da editora: | http://jmp.aip.org/resource/1/jmapaq/v53/i5/p052501_s1 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CMAT - Artigos em revistas com arbitragem / Papers in peer review journals |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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LinearSphericalWavesDeSitter.pdf | 124,03 kB | Adobe PDF | Ver/Abrir |