Spring workshop on gravity and cosmology

Session

session II

May 26, 2020, 10:00 AM

Jagiellonian University

21. A consistent theory of D -> 4 Einstein-Gauss-Bonnet gravity

Prof. Shinji Mukohyama (YITP, Kyoto University)

5/26/20, 10:00 AM

TBA

22. Quantum Ostrogradsky theorem

Hayato Motohashi

5/26/20, 10:50 AM

35. Gravitational Waves from Cosmological B-L Breaking

Kai Schmitz

5/26/20, 11:45 AM

The type-I seesaw mechanism crucially depends on the presence of right-handed neutrinos (RHNs) with large Majorana masses. These heavy RHN neutrinos are, however, notoriously hard to produce in terrestrial experiments, which impedes their experimental discovery. In the present talk, I will therefore present a novel, cosmological window onto the seesaw mechanism: the gravitational-wave (GW)...

24. Ongoing Efforts to Constrain Lorentz Symmetry Violation in Gravity

Nils A. Nilsson

5/26/20, 12:35 PM

17. CDT, a theory of quantum geometry.

Prof. Jan Ambjørn (Bohr Ins.)

5/26/20, 2:00 PM

Causal Dynamical Triangulations (CDT) is a lattice model which provides a non-perturbative, background independent formulation of four-dimensional quantum gravity. It provides an emergent background geometry and one can study the quantum fluctuations around this background geometry. The model has second order phase transition lines in the bare coupling constants. These transition lines may be...

19. Loop-based observables in 4D CDT

Zbigniew Drogosz

5/26/20, 2:50 PM

18. Cosmic Fibers and the parametrization of time in CDT quantum gravity

Daniel Németh

5/26/20, 3:45 PM

20. Spectral Analysis of Causal Dynamical Triangulations via Finite Element Methods

Giuseppe Clemente

5/26/20, 4:10 PM

I will describe the current state of research on the application of spectral methods to the
Quantum Gravity approach known as Causal Dynamical Triangulations (CDT).
Firstly, I will give an overview of the class of analysis methods based on graph theory
applied to the dual graphs of simplicial manifolds, arguing why they are inadequate, in some regimes,
to capture distance information,...

54. 4-D Gauss Bonnet from an Amplitudes Perspective

Laura Johnson

5/26/20, 4:35 PM