Symmetries and Cosmology

Humboldt University of Berlin - Institute of Physics

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  Recent Olaf Hohm Roberto Bonezzi Christoph Chiaffrino
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The research of the ERC Consolidator Group "Symmetries and Cosmology" is centered around three major research programs:

1. Uncovering the mathematical structures or symmetries underlying the higher-derivative $\alpha '$ corrections of string theory.
2. Constructing duality-covariant target space theories including massive string/M-theory modes in the framework of $L_{\infty}$ algebras.
3. Applications in Cosmology: Do $\alpha '$ corrections allow for interesting cosmological solutions (such as de Sitter vacua)? Are there imprints of massive string modes on the CMB that could be detected by future observations?