3 papers
gr-qc2026
Herglotz-type gravity
Marek Wazny, Lehel Csillag, Miguel A. S. Pinto +1
The non-conservation of the energy-momentum tensor in gravity can be interpreted as an effective manifestation of dissipation. Motivated by this, we propose a new formulat…
gr-qc2025
Modified Gravity with Nonminimal Curvature-Matter Couplings: A Framework for Gravitationally Induced Particle Creation
Francisco S. N. Lobo, Tiberiu Harko, Miguel A. S. Pinto
Modified gravity theories with a nonminimal coupling between curvature and matter offer a compelling alternative to dark energy and dark matter by introducing an explicit interacti…
gr-qc2025
Matter really does matter, or Why type theories are significant for gravitational physics and cosmology
Tiberiu Harko, Miguel A. S. Pinto, Shahab Shahidi
In a recent paper (Lacombe, Mukohyama, and Seitz, JCAP {\bf 2024}, 05, 064 (2024)), the authors provided an in-depth analysis of a class of modified gravity theories, generally cal…