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Signatures of non-singular quantum cosmological models in the cosmic microwave background radiation

Grant number: 09/15612-6
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): March 01, 2010
Effective date (End): March 31, 2011
Field of knowledge:Physical Sciences and Mathematics - Physics - Elementary Particle Physics and Fields
Principal Investigator:Oswaldo Duarte Miranda
Grantee:Dennis Fernandes Alves Bessada
Home Institution: Instituto Nacional de Pesquisas Espaciais (INPE). Ministério da Ciência, Tecnologia, Inovações e Comunicações (Brasil). São José dos Campos , SP, Brazil


In this post-doctoral project we study the possible signatures generated by non-singular models in Quantum Cosmology on the Cosmic Microwave Background Radiation (CMB). We shall study CMB anisotropies generated not only by primordial Gravitational Waves (PGW), but by curvature perturbations induced by these non-singular models as well. Also, we shall investigate the possible non-gaussianity generated by such models, and compare the theoretical predictions with the available WMAP5 data and with the preliminar Planck satellite data. (AU)

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
BESSADA, DENNIS; PINTO-NETO, NELSON; SIFFERT, BEATRIZ B.; MIRANDA, OSWALDO D. Stochastic background of relic gravitons in a bouncing quantum cosmological model. Journal of Cosmology and Astroparticle Physics, n. 11 NOV 2012. Web of Science Citations: 5.
BESSADA, DENNIS; KINNEY, WILLIAM H. Attractor solutions in tachyacoustic cosmology. Physical Review D, v. 86, n. 8 OCT 1 2012. Web of Science Citations: 1.
BESSADA, DENNIS. Non-Gaussian signatures of tachyacoustic cosmology. Journal of Cosmology and Astroparticle Physics, n. 9 SEP 2012. Web of Science Citations: 1.

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