Effective quantum gravitational collapse in a polymer framework
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2024/10/090
Abstract: We study how the presence of an area gap, different than zero, affects the gravitational collapse of a dust ball. The implementation of such discreteness is achieved through the framework of polymer quantization, a scheme… read more here.
Keywords: collapse; gravitational collapse; polymer; effective quantum ... See more keywords
Black holes and covariance in effective quantum gravity: A solution without Cauchy horizons
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DOI: 10.1103/d6ks-d576
Abstract: The issue of general covariance in effective quantum gravity models within the Hamiltonian framework is addressed. The previously proposed equations for the covariance condition in spherically symmetric models are explicitly derived. By solving this equation,… read more here.
Keywords: effective quantum; covariance effective; covariance; quantum gravity ... See more keywords
Effective quantum spacetimes from functional renormalization group
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review D"
DOI: 10.1103/physrevd.111.064031
Abstract: Using the Functional Renormalization Group approach we construct effective quantum spacetime geometries by self-consistently deforming the classical Schwarzschild-de Sitter black-hole solution. This involves studying how quantum corrections, driven by the running of the Newton's and… read more here.
Keywords: effective quantum; renormalization group; quantum; functional renormalization ... See more keywords
Gravitational radiation in infinite derivative gravity and connections to effective quantum gravity
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DOI: 10.1103/physrevd.98.044049
Abstract: The Hulse-Taylor binary provides possibly the best test of GR to date. We find the modified quadrupole formula for infinite derivative gravity (IDG). We investigate the backreaction formula for propagation of gravitational waves, found previously… read more here.
Keywords: gravitational radiation; effective quantum; derivative gravity; quantum gravity ... See more keywords