Issue |
EPL
Volume 98, Number 1, April 2012
|
|
---|---|---|
Article Number | 11001 | |
Number of page(s) | 4 | |
Section | The Physics of Elementary Particles and Fields | |
DOI | https://doi.org/10.1209/0295-5075/98/11001 | |
Published online | 29 March 2012 |
Quantum scalar field in D-dimensional de Sitter spacetimes
1
Universidade Estadual do Ceará, Faculdade de Educação, Ciências e Letras do Sertão Central R. Epitácio Pessoa, 2554, 63900-000 Quixadá, Ceará, Brazil
2
Departamento de Física, Universidade Federal do Ceará, - Caixa Postal 6030, Campus do Pici, 60455-760, Fortaleza, Ceará, Brazil
Received:
9
January
2012
Accepted:
28
February
2012
In this work we investigate the quantum theory of scalar fields propagating in a D-dimensional de Sitter spacetime. The method of dynamic invariants is used to obtain the solution of the time-dependent Schrödinger equation. The quantum behavior of the scalar field in this background is analyzed, and the results generalize previous ones found in the literature. We point that the Bunch-Davies thermal bath depends on the choice of D and the conformal parameter ξ. This is important in extra-dimension physics, as in the Randall-Sundrum model.
PACS: 11.10.Kk – Field theories in dimensions other than four
© EPLA, 2012
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