On quadrupole and octupole gravitational radiation in the ANK formalism
Sign Up to like & getrecommendations! Published in 2017 at "General Relativity and Gravitation"
DOI: 10.1007/s10714-017-2205-z
Abstract: Following the approach of Adamo–Newman–Kozameh (ANK) we derive the equations of motion for the center of mass and intrinsic angular moment for isolated sources of gravitational waves in axially symmetric spacetimes. The original ANK formulation… read more here.
Keywords: gravitational radiation; quadrupole octupole; radiation ank; octupole gravitational ... See more keywords
Novel characterization of gravitational radiation in asymptotically flat spacetimes
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review D"
DOI: 10.1103/physrevd.101.024060
Abstract: A novel criterion to determine the presence of gravitational radiation arriving to, or departing from, null infinity of any weakly asymptotically-simple space-time with vanishing cosmological constant is given. The quantities involved are geometric, of tidal… read more here.
Keywords: radiation; characterization gravitational; gravitational radiation; asymptotically flat ... See more keywords
Gravitational radiation from birefringent matter dynamics
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review D"
DOI: 10.1103/physrevd.102.104017
Abstract: We present the second-order gravitational dynamics for a spacetime inhabited by matter fields which feature vacuum birefringence. The derivation follows a perturbative variant of the covariant constructive gravity program, ensuring diffeomorphism invariance of gravity and… read more here.
Keywords: radiation; gravity; radiation birefringent; gravitational radiation ... See more keywords
Gravitational radiation in infinite derivative gravity and connections to effective quantum gravity
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review D"
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
Alternative description of gravitational radiation from black holes based on the Regge poles of the S-matrix and the associated residues
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review D"
DOI: 10.1103/physrevd.98.064052
Abstract: We advocate for an alternative description of gravitational radiation from black holes based on complex angular momentum techniques (analytic continuation of partial wave expansions, duality of the ${\cal S}$-matrix and effective resummations involving its Regge… read more here.
Keywords: gravitational radiation; regge; physics; regge poles ... See more keywords
Interaction between gravitational radiation and electromagnetic radiation
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Modern Physics D"
DOI: 10.1142/s0218271819300106
Abstract: In this review paper, we investigate the connection between gravity and electromagnetism from Faraday to the present day. The particular focus is on the connection between gravitational and electromagnetic radiation. We discuss electromagnetic radiation produced… read more here.
Keywords: radiation electromagnetic; electromagnetic radiation; radiation; electromagnetism ... See more keywords
Landauer Principle and General Relativity
Sign Up to like & getrecommendations! Published in 2020 at "Entropy"
DOI: 10.3390/e22030340
Abstract: We endeavour to illustrate the physical relevance of the Landauer principle applying it to different important issues concerning the theory of gravitation. We shall first analyze, in the context of general relativity, the consequences derived… read more here.
Keywords: gravitational radiation; general relativity; landauer principle; principle ... See more keywords