Seminár Katedry teoretickej fyziky - Alessandro Manta (25.11.2025)

v utorok 25.11.2025 o 14:00 hod. v miestnosti F2/125

19. 11. 2025 09.49 hod.
Od: Peter Maták

Prednášajúci: Alessandro Manta (Viedenská univerzita)

Názov: Quantum Spacetimes and Gravity in IKKT matrix model

Termín: 25.11.2025, 14:00 hod., miestnosť F2 125

Abstrakt:
In this talk I will explain how gravity can be extracted from the IKKT matrix model. IKKT is a non-perturbatively defined model of quantum gravity, which studies quantum dynamics of quantized (fuzzy) spacetimes, represented as matrix configurations. I will explain how the weakly coupled regime of a 4d spacetime with fuzzy extra dimensions contains Einstein-Hilbert gravity at one-loop. Furthermore, for a class solutions of IKKT, Covariant Cosmological Quantum Spacetimes, we study different mechanisms for dynamical stabilization of the extra dimensions.