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COT4 - Quantum Cosmology and Quantum Effects in the Early Universe

Speaker

Battisti, Marco Valerio

Co-autors

Giovanni Montani

Talk Title

Semiclassical behavior of the Mixmaster dynamics in the GUP framework

Abstract

The Mixmaster Universe is analyzed in a (string-inspired) generalized uncertainty principle framework. The model is studied in the ADM reduced phase space and the anisotropies satisfy a deformed Heisenberg algebra. Three main results are in order. (i) The deformation effects act as opposite of a stiff-matter. (ii) The triangular allowed domain is asymptotically stationary with respect to the point-Universe. (iii) No BKL map can be in general obtained since the Bianchi II model is no longer analytically integrable.

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