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Between Physics and Metaphysics — on Determinism, Arrow of Time and Causality [PDF]

open access: diamondФилософия и космология, 2020
Contemporary physics, with two Einstein’s theories (called “relativity” what can be interpreted erroneously) and with Heisenberg’s principle of indeterminacy (better: “lack of epistemic determinism”) are frequently interpreted as a removal of the ...
Grzegorz P. Karwasz
doaj   +3 more sources

Causality in Discrete Time Physics Derived from Maupertuis Reduced Action Principle

open access: yesEntropy, 2021
Causality describes the process and consequences from an action: a cause has an effect. Causality is preserved in classical physics as well as in special and general theories of relativity.
Roland Riek, Atanu Chatterjee
doaj   +2 more sources

Respecting causality is all you need for training physics-informed\n neural networks [PDF]

open access: greenarXiv.org, 2022
While the popularity of physics-informed neural networks (PINNs) is steadily rising, to this date PINNs have not been successful in simulating dynamical systems whose solution exhibits multi-scale, chaotic or turbulent behavior. In this work we attribute
Sifan Wang   +2 more
openalex   +3 more sources

Physics, complexity and causality [PDF]

open access: bronzeNature, 2005
Although the laws of physics explain much of the world around us, we still do not have a realistic description of causality in truly complex hierarchical structures.
George Ellis
openalex   +3 more sources

Causality in Classical Physics [PDF]

open access: greenResonance, 2013
Classical physics encompasses the study of physical phenomena which ranges from local (a point) to nonlocal (a region) in space and/or time. We discuss the concept of spatial and temporal nonlocality. However, one of the likely implications pertaining to nonlocality is non-causality. We study causality in the context of phenomena involving nonlocality.
Asrarul Haque
openalex   +4 more sources

Causality bounds on scalar-tensor EFTs [PDF]

open access: yesJournal of High Energy Physics, 2023
We compute the causality/positivity bounds on the Wilson coefficients of scalar-tensor effective field theories. Two-sided bounds are obtained by extracting IR information from UV physics via dispersion relations of scattering amplitudes, making use of ...
Dong-Yu Hong   +2 more
doaj   +2 more sources

The space of transport coefficients allowed by causality. [PDF]

open access: yesNat Phys, 2023
As an effective theory, relativistic hydrodynamics is fixed by symmetries up to a set of transport coefficients. A lot of effort has been devoted to explicit calculations of these coefficients.
Heller MP   +3 more
europepmc   +2 more sources

About Optimal Loss Function for Training Physics-Informed Neural Networks Under Respecting Causality

open access: greenarXiv.org, 2023
A method is presented that allows to reduce a problem described by differential equations with initial and boundary conditions to the problem described only by differential equations.
Vasiliy A. Es’kin   +5 more
openalex   +2 more sources

On Determinism, Causality, and Free Will: Contribution from Physics

open access: diamondRoczniki Filozoficzne, 2021
Determinism, causality, chance, free will and divine providence form a class of interlaced problems lying in three domains: philosophy, theology, and physics. Recent article by Dariusz Łukasiewicz in Roczniki Filozoficzne (no. 3, 2020) is a great example.
Grzegorz P. Karwasz
openalex   +3 more sources

Causal-PIK: Causality-based Physical Reasoning with a Physics-Informed Kernel

open access: yesInternational Conference on Machine Learning
Tasks that involve complex interactions between objects with unknown dynamics make planning before execution difficult. These tasks require agents to iteratively improve their actions after actively exploring causes and effects in the environment. For these type of tasks, we propose Causal-PIK, a method that leverages Bayesian optimization to reason ...
Parés-Morlans, Carlota   +6 more
openaire   +3 more sources

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