Göttingen 2025 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

SYDK: Symposium Quantum Mechanics and Gravity: Current Status

SYDK 1: Quantum Mechanics and Gravity: Current Status

SYDK 1.2: Hauptvortrag

Donnerstag, 3. April 2025, 11:15–11:45, ZHG008

The Quantum Einstein Equations in Loop Quantum Gravity — •Kristina Giesel — FAU Erlangen-Nürnberg, Department of Physics, Erlangen Center for Astroparticle Physics, Germany

Loop quantum gravity is a candidate for a theory of quantum gravity that takes general relativity as its classical starting point. In the canonical approach, the quantum theory is obtained by applying a canonical quantization to general relativity. To this end, the techniques known from quantum field theory, which are used in the standard model of particle physics, need to be generalized in order to apply them to general relativity, in which the geometry of spacetime is a dynamical quantity. The dynamics of the quantum theory is described by the so-called quantum Einstein equations, the quantum analog of the Einstein equations. After a brief introduction to the ideas and concepts of loop quantum gravity, we will discuss recent applications in symmetry reduced models in loop quantum cosmology and the quantum gravitational collapse with a special focus on the physical properties and implications of these models.

Keywords: loop quantum gravity; loop quantum cosmology; quantum gravitational collapse