1.4k citations · 14.1k across the 168 of their papers we have counts for
4 papers · 1 filter
Discreteness of area and volume in quantum gravity
Carlo Rovelli, Lee Smolin
We study the operator that corresponds to the measurement of volume, in non-perturbative quantum gravity, and we compute its spectrum. The operator is constructed in the loop repre…
Von Neumann Algebra Automorphisms and Time-Thermodynamics Relation in General Covariant Quantum Theories
A. Connes, C. Rovelli
We consider the cluster of problems raised by the relation between the notion of time, gravitational theory, quantum theory and thermodynamics; in particular, we address the proble…
Eigenvalues of the Weyl operator as observables of general relativity
Roberto De Pietri, Carlo Rovelli
We consider the eigenvalues of the three-dimensional Weyl operator defined in terms of the (Euclidean) Ashtekar variables, and we study their dependence on the gravitational field.…
Fermions in Quantum Gravity
H A Marales-Tecotl, C Rovelli
We study the quantum fermions+gravity system, that is, the gravitational counterpart of QED. We start from the standard Einstein-Weyl theory, reformulated in terms of Ashtekar vari…