Jul 5 – 10, 2021
Europe/Rome timezone

Holonomy corrections in effective midisuperspace models

Jul 5, 2021, 5:54 PM
17m
Talk in the parallel session Loop quantum gravity: cosmology and black holes Loop Quantum Gravity: Cosmology and Black Holes

Speaker

Asier Alonso-Bardaji (Universidad del País Vasco/Euskal Herriko Unibertsitatea)

Description

We develop a systematic approach to obtain spherically symmetric midisuperspace models with modifications inherited from loop quantum gravity. We obtain a family of effective constraints that satisfy Dirac's deformation algebra and show that (scale-dependent) holonomy corrections can be consistently implemented in the presence of matter with local degrees of freedom. These deformed Hamiltonians are expected to modify the dynamics of general relativity and to avoid the singularities predicted for gravitational collapsing models.

Primary authors

Asier Alonso-Bardaji (Universidad del País Vasco/Euskal Herriko Unibertsitatea) David Brizuela (Universidad del País Vasco/Euskal Herriko Unibertsitatea)

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Proceedings

Paper