Results 81 to 90 of about 444,298 (341)
Chaos and gravitational waves [PDF]
Physical Review D, 2001 The gravitational waveforms of a chaotic system will exhibit sensitive dependence on initial conditions. The waveforms of nearby orbits decohere on a timescale fixed by the largest Lyapunov exponent of the orbit. The loss of coherence has important observational consequences for systems where the Lyapunov timescale is short compared to the chirp ...
openaire +2 more sources
Advanced Photonics Research, EarlyView.This work presents a systematic review of atmospheric turbulence fundamentals, including theoretical formulations and adaptive optics‐based mitigation strategies. This includes an in‐depth examination of the devices, theories, and methodologies associated with traditional correction approaches.
Qinghui Liu +5 more
wiley +1 more source
Gravitational wave memory produced by cosmic background radiation [PDF]
arXiv, 2022 It is well known that energy fluxes will produce gravitational wave memory. The gravitational wave memory produced by background including cosmic microwave background (CMB), cosmic neutrino background (C$\nu$B), and gravitational wave background is investigated in this work.
arxiv
Scattering of scalar, electromagnetic and gravitational waves from binary systems
, 2018 The direct detection of gravitational waves crowns decades of efforts in the modelling of sources and of increasing detectors' sensitivity. With future third-generation Earth-based detectors or space-based observatories, gravitational-wave astronomy will
Annulli, Lorenzo +3 more
core +1 more source
The cosmological gravitational wave background from primordial density perturbations [PDF]
, 2006 We discuss the gravitational wave background generated by primordial density perturbations evolving during the radiation era. At second-order in a perturbative expansion, density fluctuations produce gravitational waves. We calculate the power spectra of
A. A. Starobinskii +4 more
core +4 more sources
The physics of gravitational waves
Proceedings of Winter School of Theoretical Physics, Second and Third Training School of COST Action CA18108 "Quantum gravity phenomenology in the multi-messenger approach" — PoS(QG-MMSchools)52 pages, 14 figures. To be submitted to POS for the proceedings of the September 2022 summer school of the COST Action CA18108 on "Theoretical and experimental approaches to quantum gravity phenomenology" (Belgrade, Serbia)
Enrico Barausse, No Coauthors
openaire +3 more sources
Frequency of gravitational waves
Physical Review D, 2006 We show that there are physically relevant situations where gravitational waves do not inherit the frequency spectrum of their source but its wavenumber spectrum.
Chiara Caprini +2 more
openaire +4 more sources
Advanced Theory and Simulations, EarlyView.FMint is introduced as a multi‐modal foundation model that integrates human‐designed solvers and data‐driven methods for fast, accurate simulation of dynamical systems. FMint leverages in‐context learning within a transformer‐based framework to refine coarse numerical solutions.
Zezheng Song, Jiaxin Yuan, Haizhao Yang
wiley +1 more source
Gravitational wave: generation and detection techniques [PDF]
arXiv, 2023 In this paper, we review the theoretical basis for generation of gravitational waves and the detection techniques used to detect a gravitational wave. To materialize this goal in a thorough way we first start with a mathematical background for general relativity from which a clue for gravitational wave was conceived by Einstein.
arxiv
Detecting Stellar Lensing of Gravitational Waves with Ground-Based Observatories
, 2018 We investigate the ability of ground based gravitational wave observatories to detect gravitational wave lensing events caused by stellar mass lenses. We show that LIGO and Virgo possess the sensitivities required to detect lenses with masses as small as
Christian, Pierre +2 more
core +1 more source