16–17 Dec 2021
Centre for Particle Theory, Durham
Europe/London timezone

Cosmological and quantum gravity applications of quantum Riemannian geometry on polygons

16 Dec 2021, 16:30
30m
Room 2 (Zoom)

Room 2

Zoom

20 minutes talk Full-length talks

Speaker

Julio Narciso Argota Quiroz (Queen Mary University of London)

Description

The idea that space-time could be better modeled due to quantum gravity effects by non-commutative coordinates or ‘quantum spacetime’ is widely accepted as a possibility and is a cornerstone of the formalism of Quantum Riemmanian Geometry (QRG). This formalism allows to address issues related to unification of quantum theory and gravity in a systematic way. Using the QRG approach we fully solve the quantum geometry of Z_n as a polygon graph with arbitrary metric square-length on the edges. The quantum cotangent bundle is 2-dimensional and a generic metric has curvature. The correlation functions for small n of the Euclanized quantum gravity are given for this model. As another toy application, we develop a FLRW model on RxZ_n finding the same radial expansion as in the classical 1+2 model. Finally, we use the adiabatic approximation in order to find the conditions under which there is no cosmological particle creation.

Would you be interested in receiving feedback on your presentation? Yes
Are you happy for your talk to be recorded? Yes
Will you be pre-recording your talk? No
Could you please give the most relevant category for your talk? Cosmology

Primary author

Julio Narciso Argota Quiroz (Queen Mary University of London)

Presentation materials