Dust collapse and horizon formation in quadratic gravity
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2025/01/114
Abstract: Quadratic Gravity supplements the Einstein-Hilbert action by terms quadratic in the spacetime curvature. This leads to a rich phase space of static, compact gravitating objects including the Schwarzschild black hole, wormholes, and naked singularities. For… read more here.
Keywords: dust collapse; formation; quadratic gravity; collapse ... See more keywords
Quantum Gravity of Dust Collapse: Shock Waves from Black Holes.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.128.121301
Abstract: We study the quantum gravitational collapse of spherically symmetric pressureless dust. Using an effective equation derived from a polymer quantization in the connection-triad phase space variables of general relativity, we find numerically, for a variety… read more here.
Keywords: gravity dust; collapse; dust collapse; quantum gravity ... See more keywords
Causal structure of nonhomogeneous dust collapse in effective loop quantum gravity
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review D"
DOI: 10.1103/z5sz-mcl5
Abstract: We study the causal structure for spherically symmetric dust collapse within a model of effective loop quantum gravity in midisuperspace framework. We develop a general strategy (working beyond the dynamical model of our consideration) for… read more here.
Keywords: dust; causal structure; collapse; dust collapse ... See more keywords