Speaker
Stefan Weigl
(Institute for Quantum Gravity, FAU Erlangen-Nürnberg)
Description
Based on our work of embedding generalized (effective) LTB models into polymerized spherically symmetric models as a 1 + 1 field theory model, I provide in this talk a way to construct effective LTB models that have a dynamically stable LTB condition, obey a notion of covariance and further are consistent with the improved dynamics of LQC. I will show various aspects of this approach and compare it with different phenomenological models by discussing areal gauge fixing, a polymerized vacuum solution and an Oppenheimer-Snyder dust collapse model. It turns out that a symmetric bounce is typical for these models and that shock solutions are absent.
Primary authors
Hongguang Liu
(FAU Erlangen)
Prof.
Kristina Giesel
(Institute for Quantum Gravity, Erlangen)
Prof.
Parampreet Singh
(Louisiana State University)
Stefan Weigl
(Institute for Quantum Gravity, FAU Erlangen-Nürnberg)
