Far from the quantum regime, quantum gravity effects may be imminent in the form of modifications of the dynamics of classical systems. Such effects can be modeled by effective theories. One common approach of this type is to describe the influence of quantum gravity effects on the motion of massive or massless test particles by modified dispersion relations. Applying these relations to a...
I will briefly examine the connection between modified theories of gravity and models based on the Generalized Uncertainty Principle (GUP). This relationship provides a framework for testing gravity proposals using tabletop experiments. Using the Landau model of liquid helium as a representative example, we will analyze the underlying details. Similarly, GUP models can be reformulated in terms...
The effective models of quantum gravity are expected to make phenomenological predictions of the fundamental theories. The issue of general covariance in effective models of quantum gravity will be addressed in this talk, which arises when canonical quantum gravity leads to a semiclassical model described by an effective Hamiltonian constraint. In the context of spherically symmetric models,...
Working within the relational framework of group field theories and specifically its application to cosmology, we derive the explicit solution to the GFT condensate effective dynamics including the treatment of scalar perturbations. This first step allowed us to investigate further the matter content and formulate its dynamics in the form of QFT on a curved background. This, in turn, produced...
Quantum gravity and quantum information both call for a generalization of reference frame transformations. In quantum gravity, quantum groups naturally implement such generalization in some noncommutative spacetimes. In quantum mechanics, the concept of quantum reference frame emerged when linking reference frames to quantum systems. The connection between quantum groups and quantum reference...
I will discuss the theory behind some of the black holes in both loop quantum gravity and generalized uncertainty approaches, and present a number of phenomenological signatures they exhibit.
