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Abstracts
Renate Loll
Quantum Ricci curvature
Curvature provides a very important way of understanding the properties of classical spacetime. However, in the context of nonperturbative quantum gravity, the realization of meaningful quantum curvature observables in a Planckian regime has not received much attention. In an exciting new development, we have been able to define and operationally construct "quantum Ricci curvature", inspired by a classical notion of sphere distance. The proposal has been tested on a variety of piecewise flat geometries and in twodimensional, dynamically triangulated quantum gravity. The results look very promising and indicate that quantum Ricci curvature may give us a new way of characterizing spacetime at the Planck scale.


Organizer:
Institute of Physics Belgrade
(University of Belgrade)
Belgrade, Serbia
Coorganizers:
Mathematical Institute
(Serbian Academy of Sciences and Arts)
Belgrade, Serbia
and
Faculty of Mathematics
(University of Belgrade)
Belgrade, Serbia
Email: mphys9@ipb.ac.rs
