Cosmological Landsberg Finsler spacetimes

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

Research output: Working paperPreprintAcademicpeer-review

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Abstract

We locally classify all possible cosmological homogeneous and isotropic Landsberg-type Finsler structures, in 4-dimensions. Among them, we identify viable non-stationary Finsler spacetimes, i.e. those geometries leading to a physical causal structure and a dynamical universe. Noting that any non-stationary Landsberg metric must be actually non-Berwaldian (i.e., it should be a so-called 'unicorn'), we construct the unique Finsler, non-Berwaldian Landsberg generalization of Friedmann-Lemaitre-Robertson-Walker geometry.
Original languageEnglish
Publication statusSubmitted - 2024

Keywords

  • math-ph
  • math.DG
  • math.MP

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