LIGO and Gravitational Waves II: Nobel Lecture, December 8, 2017
Sign Up to like & getrecommendations! Published in 2018 at "Annalen der Physik"
DOI: 10.1002/andp.201800357
Abstract: The observation of gravitational waves in the Laser Interferometer Gravitational‐Wave Observatory (LIGO) was announced on February 11, 2016,1 one hundred years after Einstein proposed the existence of gravitational waves.2, 3 This observation came after more… read more here.
Keywords: waves nobel; nobel lecture; lecture december; gravitational waves ... See more keywords
Stability and emergence of gravitational waves in the quantum cosmic phantom models
Sign Up to like & getrecommendations! Published in 2017 at "General Relativity and Gravitation"
DOI: 10.1007/s10714-017-2254-3
Abstract: We provide an alternative interpretation of the quantum cosmic phantom models, in which the current acceleration of the universe is due to the existence of an entropy of entanglement. Subsequently, we study their stability as… read more here.
Keywords: phantom models; quantum cosmic; gravitational waves; cosmic phantom ... See more keywords
Extreme gravity tests with gravitational waves from compact binary coalescences: (II) ringdown
Sign Up to like & getrecommendations! Published in 2018 at "General Relativity and Gravitation"
DOI: 10.1007/s10714-018-2372-6
Abstract: The LIGO/Virgo detections of binary black hole mergers marked a watershed moment in astronomy, ushering in the era of precision tests of Kerr dynamics. We review theoretical and experimental challenges that must be overcome to… read more here.
Keywords: extreme gravity; gravity tests; gravitational waves; black hole ... See more keywords
Singularities of plane gravitational waves in Einstein’s general relativity
Sign Up to like & getrecommendations! Published in 2020 at "General Relativity and Gravitation"
DOI: 10.1007/s10714-020-02667-1
Abstract: Similar to the Schwarzschild coordinates for spherical black holes, the Baldwin, Jeffery and Rosen (BJR) coordinates for plane gravitational waves are often singular, and extensions beyond such singularities are necessary, before studying asymptotic properties of… read more here.
Keywords: left right; gravitational waves; plane gravitational; chi ... See more keywords
Bursts of gravitational waves due to crustquake from pulsars
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Astrophysics and Astronomy"
DOI: 10.1007/s12036-020-09631-0
Abstract: We revisit here a possibility of generation of gravitational wave (GW) bursts due to a very quick change in the quadrupole moment (QM) of a deformed spheroidal pulsar as a result of crustquake. Since it… read more here.
Keywords: gravitational waves; waves due; crustquake pulsars; due crustquake ... See more keywords
Oscillatory amplitude of stochastic gravitational wave spectrum
Sign Up to like & getrecommendations! Published in 2022 at "Indian Journal of Physics"
DOI: 10.1007/s12648-022-02325-z
Abstract: Stochastic gravitational waves generated from early universe are placed in the squeezed vacuum state. The quantum effect on the stochastic gravitational waves leads to enhancement of its spectral amplitude in the long wavelength regime and… read more here.
Keywords: gravitational waves; stochastic gravitational; amplitude stochastic; oscillatory amplitude ... See more keywords
Remarks on cosmological gravitational waves
Sign Up to like & getrecommendations! Published in 2018 at "Annals of Physics"
DOI: 10.1016/j.aop.2018.05.003
Abstract: We study the propagation of a gravitational wave in an Ads spacetime. We find that, in presence of the cosmological constant, the graviton mass cannot be measured with higher precision than the square root of… read more here.
Keywords: remarks cosmological; cosmological gravitational; gravitational waves;
The determination for ideal release point of test masses in drag-free satellites for the detection of gravitational waves
Sign Up to like & getrecommendations! Published in 2020 at "Advances in Space Research"
DOI: 10.1016/j.asr.2020.09.030
Abstract: Abstract Gravitational waves are ripples in space–time predicted by Albert Einstein's general relativity and provide a new way to understand the universe. Space-borne detectors of gravitational waves, extending to very large scales, can effectively detect… read more here.
Keywords: gravitational waves; detection gravitational; test masses; test ... See more keywords
Relativistic quantum geometry from a 5D geometrical vacuum: Gravitational waves from preinflation
Sign Up to like & getrecommendations! Published in 2019 at "Physics of the Dark Universe"
DOI: 10.1016/j.dark.2019.100309
Abstract: In this work we introduce Relativistic Quantum Geometry (RQG) on a Modern Kaluza-Klein theory by studying the boundary conditions on a extended Einstein-Hilbert action for a 5D vacuum defined on a 5D (background) Riemannian manifold.… read more here.
Keywords: gravitational waves; vacuum; geometry; relativistic quantum ... See more keywords
Gravitational waves from binary black holes as probes of the structure formation history
Sign Up to like & getrecommendations! Published in 2020 at "Physics of the Dark Universe"
DOI: 10.1016/j.dark.2020.100476
Abstract: Abstract Gravitational-wave detectors on earth have detected gravitational waves from merging compact objects in the local Universe. In future we will detect gravitational waves from higher-redshift sources, which trace the high-redshift structure formation history. That… read more here.
Keywords: structure formation; formation history; gravitational waves;
Double ONe–Mg white dwarfs merging as the source of the powerfull gravitational waves for LIGO/VIRGO type interferometers
Sign Up to like & getrecommendations! Published in 2017 at "New Astronomy"
DOI: 10.1016/j.newast.2017.04.013
Abstract: Abstract New strong non-spiralling-in gravitational wave (GW) source for LIGO/VIRGO detectors are proposed. Double O Ne–Mg white dwarf mergers can produce strong gravitational waves with frequencies in the several hundreds Hz range. Such events can… read more here.
Keywords: gravitational waves; double one; source; ligo virgo ... See more keywords