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Constraining the variation of fundamental constants with the CMB

Silvia Galli
Institut d'astrophysique de Paris

The high precision of current and future CMB data may allow the detection of numerous physical processes that might change the standard model of recombination, leaving recognizable imprints on the angular power spectra. In particular, changes in the value of the fundamental constants, such as the fine structure constant and the gravitational constant, might be detectable in upcoming data. Testing the possible variations of these constants with the CMB is important because it allows to test the validity of known physical laws at space-time scales that are clearly inaccessible with laboratory experiments. In this talk, I will present some recent constraints obtained on the variation of these constants using CMB data.

2012 June 13, 13:30

Centro de Astrofísica da Universidade do Porto (Classroom)
Rua das Estrelas, 4150-762 Porto

Faculdade de Ciências da Universidade de Lisboa Universidade do Porto Faculdade de Ciências e Tecnologia da Universidade de Coimbra
Fundação para a Ciência e a Tecnologia COMPETE 2020 PORTUGAL 2020 União Europeia