Results 51 to 60 of about 1,893 (155)
Optimization of Finite-Differencing Kernels for Numerical Relativity Applications
Journal of Low Power Electronics and Applications, 2018 A simple optimization strategy for the computation of 3D finite-differencing kernels on many-cores architectures is proposed. The 3D finite-differencing computation is split direction-by-direction and exploits two level of parallelism: in-core ...
Roberto Alfieri +3 more
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Living Reviews in Relativity, 2017 The idea of stable, localized bundles of energy has strong appeal as a model for particles. In the 1950s, John Wheeler envisioned such bundles as smooth configurations of electromagnetic energy that he called geons, but none were found. Instead, particle-
Steven L. Liebling, Carlos Palenzuela
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Numerical Approaches to Spacetime Singularities
Living Reviews in Relativity, 1998 This review updates a previous review article. Numerical explorationof the properties of singularities could, in principle, yield detailed understanding of their nature in physically realistic cases.
Beverly K. Berger
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Living Reviews in Relativity, 2004 The notion of conformal infinity has a long history within the research in Einstein's theory of gravity. Today, 'conformal infinity' is related to almost all other branches of research in general relativity, from quantisation procedures to abstract ...
Frauendiener Jörg
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Axisymmetric Numerical Relativity
, 2006 This thesis is concerned with formulations of the Einstein equations in axisymmetric spacetimes which are suitable for numerical evolutions. We develop two evolution systems based on the (2+1)+1 formalism. The first is a (partially) constrained scheme with elliptic gauge conditions arising from maximal slicing and conformal flatness.
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Numerical Relativity and Astrophysics
Annual Review of Astronomy and Astrophysics, 2014 Throughout the Universe many powerful events are driven by strong gravitational effects that require general relativity to fully describe them. These include compact binary mergers, black hole accretion, and stellar collapse, where velocities can approach the speed of light and extreme gravitational fields (ΦNewt/c2≃1) mediate the interactions.
Lehner, Luis, Pretorius, Frans
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Living Reviews in Relativity, 2000 The notion of conformal infinity has a long history within the research in Einstein's theory of gravity. Today, ``conformal infinity'' is related with almost all other branches of research in general relativity, from quantisation procedures to abstract ...
Frauendiener Jörg
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Numerical Relativity in 3+1 Dimensions
Annalen der Physik, 2000 AbstractNumerical relativity is finally approaching a state where the evolution of rather general (3+1)‐dimensional data sets can be computed in order to solve the Einstein equations. After a general introduction, three topics of current interest are briefly reviewed: binary black hole mergers, the evolution of strong gravitational waves, and shift ...
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RisingTides: An Analytic Modeling Code of Tidal Effects in Binary Neutron Star Mergers
AstronomyGravitational waves produced by binary neutron star mergers offer a unique window into matter behavior under extreme conditions. In this context, we analytically model the effect of matter on gravitational waves from binary neutron star mergers. We start
Alexander O’Dell +1 more
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Numerical Relativity Injection Infrastructure
, 2017 This document describes the new Numerical Relativity (NR) injection infrastructure in the LIGO Algorithms Library (LAL), which henceforth allows for the usage of NR waveforms as a discrete waveform approximant in LAL. With this new interface, NR waveforms provided in the described format can directly be used as simulated GW signals ("injections") for ...
Schmidt, P., Harry, I., Pfeiffer, H.
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