3 papers
math-ph2024
Notions of Fermionic Entropies of a Causal Fermion System
Felix Finster, Robert H. Jonsson, Magdalena Lottner +2
The fermionic von Neumann entropy, the fermionic entanglement entropy and the fermionic relative entropy are defined for causal fermion systems. Our definition makes use of entropy…
math-ph2024
The Fermionic Entanglement Entropy of Causal Diamonds in Two-Dimensional Minkowski Space
Felix Finster, Magdalena Lottner, Albert Much +1
The fermionic Rényi entanglement entropy is studied for causal diamonds in two-dimensional Minkowski spacetime. Choosing the quasi-free state describing the Minkowski vacuum with a…
math-ph2021
Banach Manifold Structure and Infinite-Dimensional Analysis for Causal Fermion Systems
Felix Finster, Magdalena Lottner
A mathematical framework is developed for the analysis of causal fermion systems in the infinite-dimensional setting. It is shown that the regular spacetime point operators form a…