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hep-th2025
Rolling with modular symmetry: quintessence and de Sitter in heterotic orbifolds
Hansel Gordillo-Ruiz, Miguel Hernandez-Segura, Ignacio Portillo-Castillo +2
Modular invariance is a fundamental symmetry in string compactifications, constraining both the structure of the effective theory and the dynamics of moduli and matter fields. It h…
hep-th2003★ 23 cited
On Bouncing Brane-Worlds, S-branes and Branonium Cosmology
C. P. Burgess, F. Quevedo, R. Rabadan +2
We present several higher-dimensional spacetimes for which observers living on 3-branes experience an induced metric which bounces. The classes of examples include boundary branes…