scholarly journals GRChombo: An adaptable numerical relativity code for fundamental physics

2021 ◽  
Vol 6 (68) ◽  
pp. 3703
Author(s):  
Tomas Andrade ◽  
Llibert Salo ◽  
Josu Aurrekoetxea ◽  
Jamie Bamber ◽  
Katy Clough ◽  
...  
Keyword(s):  
Numerical Relativity ◽  
Fundamental Physics

scholarly journals Neutron star merger remnants

2020 ◽  
Vol 52 (11) ◽  
Author(s):  
Sebastiano Bernuzzi
Keyword(s):  
Neutron Star ◽  
Nuclear Matter ◽  
Gravitational Wave ◽  
Weak Interactions ◽  
Numerical Relativity ◽  
Current Understanding ◽  
Fundamental Physics ◽  
Binary Neutron Star ◽  
General Relativistic ◽  
Relativistic Models

AbstractBinary neutron star mergers observations are a unique way to constrain fundamental physics and astrophysics at the extreme. The interpretation of gravitational-wave events and their electromagnetic counterparts crucially relies on general-relativistic models of the merger remnants. Quantitative models can be obtained only by means of numerical relativity simulations in $$3+1$$ 3 + 1 dimensions including detailed input physics for the nuclear matter, electromagnetic and weak interactions. This review summarizes the current understanding of merger remnants focusing on some of the aspects that are relevant for multimessenger observations.

scholarly journals NUMERICAL RELATIVITY IN HIGHER-DIMENSIONAL SPACE–TIMES

2013 ◽  
Vol 28 (22n23) ◽  
pp. 1340017 ◽  
Author(s):  
HELVI WITEK
Keyword(s):  
Black Holes ◽  
General Relativity ◽  
Black Hole ◽  
Numerical Relativity ◽  
Dimensional Space ◽  
Fundamental Physics ◽  
Higher Dimensional ◽  
Lecture Notes ◽  
Spring School

Black holes are among the most exciting phenomena predicted by General Relativity and play a key role in fundamental physics. Many interesting phenomena involve dynamical black hole configurations in the high curvature regime of gravity. In these lecture notes I will summarize the main numerical relativity techniques to explore highly dynamical phenomena, such as black hole collisions, in generic D-dimensional space–times. The present notes are based on my lectures given at the NR/HEP2 spring school at IST/Lisbon (Portugal) from March 11–14, 2013.

ILL FACILITIES FOR FUNDAMENTAL PHYSICS EXPERIMENTS

1984 ◽  
Vol 45 (C3) ◽  
pp. C3-279-C3-284 ◽  
Author(s):  
P. Ageron ◽  
W. Mampe
Keyword(s):  
Fundamental Physics ◽  
Physics Experiments

Fundamentality

2017 ◽  
Author(s):  
Richard Healey
Keyword(s):  
Quantum Theory ◽  
High Energy Physics ◽  
Physical Property ◽  
Natural World ◽  
High Energy ◽  
Quantum Field Theories ◽  
Fundamental Physics ◽  
The World ◽  
Energy Physics

The metaphor that fundamental physics is concerned to say what the natural world is like at the deepest level may be cashed out in terms of entities, properties, or laws. The role of quantum field theories in the Standard Model of high-energy physics suggests that fundamental entities, properties, and laws are to be sought in these theories. But the contextual ontology proposed in Chapter 12 would support no unified compositional structure for the world; a quantum state assignment specifies no physical property distribution sufficient even to determine all physical facts; and quantum theory posits no fundamental laws of time evolution, whether deterministic or stochastic. Quantum theory has made a revolutionary contribution to fundamental physics because its principles have permitted tremendous unification of science through the successful application of models constructed in conformity to them: but these models do not say what the world is like at the deepest level.

Production and Relevance

2017 ◽  
Author(s):  
Stuart Glennan
Keyword(s):  
Causal Relevance ◽  
Fundamental Physics ◽  
Causal Chains

This chapter offers an account of mechanistic production, which is contrasted with Salmon and Dowe’s theory of physical production. It provides a new analysis of the nature of events, and an account of how those events can form productive causal chains. This account identifies three distinct kinds of production: constitutive, precipitating, and chained. The chapter shows how the New Mechanist account addresses a number of standard problems for theories of causation, and for mechanistic theories in particular. These include how mechanistic production could be grounded in fundamental physics, how productive theories can explain causation by omission, prevention, and disconnection, how to explain causal relevance without appeal to counterfactuals, and how to understand the relation between production and constitution in inter-level causal claims. The chapter concludes by discussing how the New Mechanist approach to causation and constitution leads to a sensible account of the nature and limits of reduction and emergence.

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