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Searching for Dark Energy

Luca Amendola
ITP, University of Heidelberg

After more than 10 years from its discovery, the accelerated expansion of the Universe has still not found a convincing explanation. The best model so far requires the introduction of dark energy, an hypothetical, enigmatic component that drives the expansion. Building on the first idea of a classical field capable of resisting gravity's pull, Einstein's famous cosmological constant, cosmologists have proposed a number of alternative models. Although none of these has gained decisive support, they have prompted a new era of large scale efforts to map the history and geography of the Universe. In this talk I will review the main concepts concerning dark energy and illustrate the large experimental projects to constrain its properties.

2010 December 14, 13:30

Centro de AstrofÝsica da Universidade do Porto (Auditorium)
Rua das Estrelas, 4150-762 Porto

Instituto de Astrof├şsica e Ci├¬ncias do Espa├žo Universidade do Porto Faculdade de Ciências da Universidade de Lisboa Funda├ž├úo para a Ci├¬ncia e a Tecnologia
Outreach at IA