Results 21 to 30 of about 48,052 (261)
Raychaudhuri’s equation and aspects of relativistic charged collapse [PDF]
Physical Review D, 2010 Revised version, to appear in ...
Kouretsis, Alexandros P. +1 more
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Quantum effects of the conformal anomaly in a 2D model of gravitational collapse
Journal of High Energy Physics, 2023 The macroscopic effects of the quantum conformal anomaly are evaluated in a simplified two-dimensional model of gravitational collapse. The effective action and stress tensor of the anomaly can be expressed in a local quadratic form by the introduction ...
Emil Mottola +3 more
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ChemEngineering, 2021 In this work the first 3D Smoothed Particle Hydrodynamics model of a Rayleigh collapse for an empty cavity is proposed with the aim of improving the hydrodynamic analysis of a non-symmetrical collapse.
Andrea Albano, Alessio Alexiadis
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Instability and Collapse in Discrete Wave Equations
Computational Methods in Applied Mathematics, 2005 AbstractUnstable growth phenomena in spatially discrete wave equations are studied. We characterize sets of initial states leading to instability and collapse and obtain analytical predictions for the blow-up time. The theoretical predictions are con- trasted with the numerical solutions computed by a variety of schemes.
Carpio Rodríguez, Ana María +1 more
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Extended equation of state for core-collapse simulations [PDF]
Physical Review C, 2012 In stellar core-collapse events matter is heated and compressed to densities above nuclear matter saturation density. For progenitors stars with masses above about 25 solar masses, which eventually form a black hole, the temperatures and densities reached during the collapse are so high that a traditional description in terms of electrons, nuclei, and ...
Oertel, M., Fantina, A., Novak, J.
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Uniqueness of the Equation for Quantum State Vector Collapse [PDF]
Physical Review Letters, 2013 The linearity of quantum mechanics leads, under the assumption that the wave function offers a complete description of reality, to grotesque situations famously known as Schrödinger's cat. Ways out are either adding elements of reality or replacing the linear evolution by a nonlinear one.
BASSI, ANGELO +2 more
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The Schrödinger–Newton equation and its foundations
New Journal of Physics, 2014 The necessity of quantising the gravitational field is still subject to an open debate. In this paper we compare the approach of quantum gravity, with that of a fundamentally semi-classical theory of gravity, in the weak-field non-relativistic limit.
Mohammad Bahrami +3 more
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The role of an equation of state in the dynamical (in)stability of a radiating star
European Physical Journal C: Particles and Fields, 2019 The influence of an equation of state on the dynamical (in)stability of a sphere undergoing dissipative collapse is investigated for various forms of matter distributions.
Megandhren Govender +2 more
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NEW EQUATIONS OF STATE IN SIMULATIONS OF CORE-COLLAPSE SUPERNOVAE [PDF]
The Astrophysical Journal, 2012 We discuss three new equations of state (EOS) in core-collapse supernova simulations. The new EOS are based on the nuclear statistical equilibrium model of Hempel and Schaffner-Bielich (HS), which includes excluded volume effects and relativistic mean-field (RMF) interactions. We consider the RMF parameterizations TM1, TMA, and FSUgold.
Hempel, M. +3 more
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Geofluids, 2022 Water inrush of collapse column in the coal seam floor in the karst area is a frequent hydrogeological disaster, and it is becoming one of the significant hidden dangers threatening the safety of coal mine production in China. Based on the self-developed
Yang Feng +4 more
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