FAU^2 Focus Workshop on quantum black holes and the relation to asymptotic infinity

Session

Session 5

27 Jun 2024, 13:30

ECAP Laboratory Building

23. Semiclassical and quantum black holes

Jerzy Lewandowski (Zoom) (University of Warsaw)

27/06/2024, 13:30

TBA

18. Spin foam amplitude of the black-to-white hole transition

Cong Zhang (FAU Erlangen-Nürnberg)

27/06/2024, 14:10

It has been conjectured that quantum gravity effects may cause the black-to-white hole transition due to quantum tunneling. The transition amplitude of this process is explored within the framework of the spin foam model on a 2-complex containing 56 vertices. We develop a systematic way to construct the bulk triangulation from the boundary triangulation to obtain the 2-complex. By using...

21. Criteria for Loop Quantization of Black Hole Systems

Jonathan Engle (Zoom) (Florida Atlantic University)

27/06/2024, 14:50

Thus far, there is no proposal for a loop quantization -- even at the level of effective dynamics -- of Kantowski-Sachs that both is exactly covariant under residual diffeomorphisms and has the correct classical limit. The models of Chiou in 2008, Joe and Singh in 2015, and other models based on similar mu-bar schemes, are the former but not the latter. The model of Ashtekar, Olmedo, and Singh...

33. Final discussion with all speakers of session 5

27/06/2024, 15:30