12–15 oct. 2021
IHES
Fuseau horaire Europe/Paris

Discrete Gravity

13 oct. 2021, 14:00
30m
Marilyn and James Simons Conference Center (IHES)

Marilyn and James Simons Conference Center

IHES

35, route de Chartres 91440 Bures-sur-Yvette (France)

Orateur

Viatcheslav Mukhanov (remote) (Ludwig Maximilian University, Munich)

Description

We assume that the points in volumes smaller than an elementary volume (which may have a Planck size) are indistinguishable in any physical experiment. This naturally leads to a picture of a discrete space with a finite number of degrees of freedom per elementary volume. In such discrete spaces, each elementary cell is completely characterized by displacement operators connecting a cell to the neighboring cells and by the spin connection. We define the torsion and curvature of the discrete spaces and show that in the limiting case of vanishing elementary volume the standard results for the continuous curved differentiable manifolds are completely reproduced.

Documents de présentation