94 citations · 234 across the 23 of their papers we have counts for
9 papers · 1 filter
On the Conicality of Spacetimes
Eric Ling, Claudio F. Paganini
The notion of conicality, recently introduced in [2403.00916], captures the extent to which the joint future of a finite set in spacetime uniquely determines the generating subset…
Quantum Reference Frames and Correlation Geometry
Claudio F. Paganini
The aim of this paper is to provide a largely self-contained, compact and comprehensible introduction to the basic ideas behind correlation geometry, which underlies the theory of…
Causal Fermion Systems, Non-Commutative Geometry and Generalized Trace Dynamics
Shane Farnsworth, Felix Finster, Claudio F. Paganini +1
We compare the structures and methods in the theory of causal fermion systems with generalized trace dynamics and non-commutative geometry. Although the three theories differ on ma…
Pseudodifferential Weyl calculus on vector bundles
Lars Andersson, Benjamin Moser, Marius A. Oancea +2
We develop a geometric framework for Weyl quantization on pseudo-Riemannian manifolds, in which pseudodifferential operators act on sections of vector bundles equipped with pseudo-…
Causal Fermion Systems: Spacetime as the web of correlations of a many-body quantum system
Patrick Fischer, Claudio F. Paganini
In this paper, we argue that spacetime in causal fermion systems can be understood as the web of correlations of a many-body quantum system.This argument highlights the fact that c…
Causal Fermion Systems as an Effective Collapse Theory
Felix Finster, Johannes Kleiner, Claudio F. Paganini
It is shown that, in the non-relativistic limit, causal fermion systems give rise to an effective collapse theory. The nonlinear and stochastic correction terms to the Schrödinger…
Causal Fermion Systems and Octonions
Felix Finster, Niels G. Gresnigt, J. M. Isidro +3
We compare the structures and methods in the theory of causal fermion systems with approaches to fundamental physics based on division algebras, in particular the octonions. We fin…
Incompatibility of Frequency Splitting and Spatial Localization: A Quantitative Analysis of Hegerfeldt's Theorem
Felix Finster, Claudio F. Paganini
We prove quantitative versions of the following statement: If a solution of the 1+1-dimensional wave equation has spatially compact support and consists mainly of positive frequenc…
Causal Fermion Systems and the ETH Approach to Quantum Theory
Felix Finster, Jürg Fröhlich, Marco Oppio +1
After reviewing the theory of "causal fermion systems" (CFS theory) and the "Events, Trees, and Histories Approach" to quantum theory (ETH approach), we compare some of the mathema…