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Gauge theories for gravitation, Sitter space and cosmological horizons

Grant number: 06/00622-8
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): October 01, 2006
Effective date (End): April 30, 2010
Field of knowledge:Physical Sciences and Mathematics - Physics - Elementary Particle Physics and Fields
Principal researcher:José Geraldo Pereira
Grantee:Juan Pablo Beltran Almeida
Home Institution: Instituto de Física Teórica (IFT). Universidade Estadual Paulista (UNESP). Campus de São Paulo. São Paulo , SP, Brazil


The main purpose of this project is to make a deep study on the fundamentals of the teleparallel equivalent of general relativity, which is a genuine gauge theory for gravity, with the translation group as symmetry group. Initially, an Hamiltonian formalation for teleparallel gravity will be pursued, with the objetive of applying the theory of "loop quantum gravity" (LQG) to the study of a possible quantum theory for gravitation. The motivation lies in the affinity of the LQG formalism with gauge theories, which makes of teleparallelism a more appropriate theory than general relativity, to study quantum versions of gravitacional field. We plan also to continue our previous studies about the role played by torsion in the description of the gravitational interaction, as well as on the dynamics of horizons, both of the de Sitter and black hole types. (AU)

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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)
BARTOLO, NICOLA; BELTRAN ALMEIDA, JUAN P.; MATARRESE, SABINO; PIETRONI, MASSIMO; RIOTTO, ANTONIO. Signatures of primordial non-Gaussianities in the matter power-spectrum and bispectrum: the time-RG approach. Journal of Cosmology and Astroparticle Physics, n. 3 MAR 2010. Web of Science Citations: 24.

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