Cosmological Landsberg-Finsler spacetimes

authored by

Annamária Friedl-Szász, Elena Popovici-Popescu, Nicoleta Voicu, Christian Pfeifer, Sjors Heefer

Abstract

We classify all possible cosmological homogeneous and isotropic Landsberg-type Finsler structures, in four dimensions. Among them, we identify viable nonstationary Finsler spacetimes, i.e., those geometries leading to a physical causal structure and a dynamical universe. Noting that any nonstationary and non-Riemannian Landsberg metric must be actually also non-Berwald (i.e., it should be a so-called "unicorn"), we construct the unique Finsler, non-Berwaldian Landsberg generalization of Friedmann-Lemaître-Robertson-Walker geometry.

External Organisation(s)

Center of Applied Space Technology and Microgravity (ZARM)

Type

Article

Journal

Physical Review D

Volume

111

ISSN

2470-0010

Publication date

19.02.2025

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics

Electronic version(s)

https://doi.org/10.1103/PhysRevD.111.044058 (Access: Unknown)