From the 1 of 4 linked papers with an AI index.
4 papers
Observers, local measurements, and topology
Michele Cirafici
The paper shows how an observer moving through a dynamical spacetime can use local measurements from a von Neumann algebra of observables to build a simplicial complex that encodes…
Gravitational algebras and applications to nonequilibrium physics
Michele Cirafici
This note aims to offer a non-technical and self-contained introduction to gravitational algebras and their applications in the nonequilibrium physics of gravitational systems. We…
Fluctuation theorems, quantum channels and gravitational algebras
Michele Cirafici
In this note we study nonequilibrium fluctuations in gravitational algebras within de Sitter space. An essential aspect of this study is quantum measurement theory, which allows us…
On the Nonequilibrium Dynamics of Gravitational Algebras
Michele Cirafici
We explore nonequilibrium features of certain operator algebras which appear in quantum gravity. The algebra of observables in a black hole background is a Type $\mathrm{II}_\infty…