2 papers
gr-qc2026
On the geometrical and dynamical distinction between Unimodular and General Relativistic wormholes
Marco Bosquez, Erick Pastén, Mauricio Cataldo +1
We characterize traversable wormholes in Unimodular Gravity (UG) and investigate what distinguishes them from their General Relativistic (GR) counterparts. For a class of static an…
gr-qc2026
Null Raychaudhuri Equation and the Impossibility of Traversable Wormholes in Unimodular Gravity
Erick Pastén, Marco Bosquez, Norman Cruz
We formulate the traversability of wormhole throats as a local and covariant null defocusing condition derived from the Raychaudhuri equation. Since unimodular gravity preserves th…