From the 1 of 8 linked papers with an AI index.
8 papers
Structural morphology and the gravitational arrow of time
Julian Barbour, Francisco S. N. Lobo, Maria I. R. Lourenço
The paper studies how a scale‑invariant measure of clustering (the variety V) evolves in the Newtonian N‑body problem with zero total energy and momentum, showing that similar glob…
The Emergence of Measured Geometry in Self-Gravitating Systems
Maria I. R. Lourenço, Julian Barbour, Francisco S. N. Lobo
This work investigates the geometrical properties of self-gravitating -body systems from the perspective established by Henri Poincaré and Albert Einstein concerning the operat…
Spin effects on particle creation and evaporation in gravity
A. A. Araújo Filho, N. Heidari, Francisco S. N. Lobo
In this work, we study how the spin of particle modes influences particle creation, greybody factors, absorption, and evaporation of a black hole within the framework of modified e…
Scale Invariance, Variety and Central Configurations
Maria I. R. Lourenço, Julian Barbour, Francisco S. N. Lobo
Scale invariance has received very little attention in physics. Nevertheless, it provides a natural conceptual foundation for a relational understanding of the universe, where abso…
Timelike Entanglement Entropy of Hawking Radiation
Yahya Ladghami, Francisco S. N. Lobo, Taoufik Ouali
We introduce the concept of timelike entanglement entropy of Hawking radiation as a novel probe of the black hole information paradox. By analytically continuing black hole spaceti…
Vector wormholes as conduits for matter interaction
Nailya Ganiyeva, Bruno J. Barros, Ãlvaro de la Cruz-Dombriz +1
In this work, we focus on the dynamics of a massive one-form field, \textbf{B}, often referred to simply as a vector field, that is minimally coupled to standard Einstein gravity.…