Results 21 to 30 of about 411,823 (288)

Contextuality or Nonlocality: What Would John Bell Choose Today?

open access: yesEntropy, 2023
A violation of Bell-CHSH inequalities does not justify speculations about quantum non-locality, conspiracy and retro-causation. Such speculations are rooted in a belief that setting dependence of hidden variables in a probabilistic model (called a ...
Marian Kupczynski
doaj   +1 more source

Response to ‘Comment on “Quantum correlations are weaved by the spinors of the Euclidean primitives”’

open access: yesRoyal Society Open Science, 2022
In this paper, I respond to a critique of one of my papers previously published in the Royal Society Open Science entitled ‘Quantum correlations are weaved by the spinors of the Euclidean primitives.’ Without engaging with the geometrical framework ...
Joy Christian
doaj   +1 more source

Localization and causality for a free particle [PDF]

open access: yesPhysics Letters A, 2003
Theorems (most notably by Hegerfeldt) prove that an initially localized particle whose time evolution is determined by a positive Hamiltonian will violate causality. We argue that this apparent paradox is resolved for a free particle described by either the Dirac equation or the Klein-Gordon equation because such a particle cannot be localized in the ...
Barat, N., Kimball, J. C.
openaire   +2 more sources

Local structure of sprinkled causal sets [PDF]

open access: yesPhysical Review D, 2021
We describe numerical and analytical investigations of causal sets sprinkled into spacetime manifolds. The first part of the paper is a numerical study of finite causal sets sprinkled into Alexandrov subsets of Minkowski spacetime of dimensions $1 + 1$, $1 + 2$ and $1 + 3$.
Christopher J. Fewster   +3 more
openaire   +3 more sources

Dr. Bertlmann’s Socks in a Quaternionic World of Ambidextral Reality

open access: yesIEEE Access, 2020
Unlike our basic theories of space and time, quantum mechanics is not a locally causal theory. Moreover, it is widely believed that any hopes of restoring local causality within any realistic theory have been undermined by Bell's theorem and the ...
Joy Christian
doaj   +1 more source

Picturing Indefinite Causal Structure [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2017
Following on from the notion of (first-order) causality, which generalises the notion of being tracepreserving from CP-maps to abstract processes, we give a characterization for the most general kind of map which sends causal processes to causal ...
Aleks Kissinger, Sander Uijlen
doaj   +1 more source

Event Causality Extraction Based on Two-Layer CNN-BiGRU-CRF [PDF]

open access: yesJisuanji gongcheng, 2021
The existing event causality extraction methods have poor performance in relationship boundary recognition and are limited by insufficient semantic representation of texts.
ZHENG Qiaoduo, WU Zhendong, ZOU Junying
doaj   +1 more source

On the concept of Bell's local causality in local classical and quantum theory [PDF]

open access: yes, 2014
The aim of this paper is to give a sharp definition of Bell's notion of local causality. To this end, first we unfold a framework, called local physical theory, integrating probabilistic and spatiotemporal concepts.
Hofer-Szabó, G., Vecsernyés, P.
core   +2 more sources

Thermodynamics of local causal horizons [PDF]

open access: yesPhysical Review D, 2013
We propose an expression for the entropy density associated with the Local Causal Horizons in any diffeomorphism invariant theory of gravity. If the black-hole entropy of the theory satisfies the physical process version of the first law of thermodynamics then our proposed entropy satisfies the Clausius relation.
Mohd, Arif, Sarkar, Sudipta
openaire   +2 more sources

Kausalitas antara Penerimaan, Belanja, dan PDRB pada Kota dan Kabupaten di Indonesia

open access: yesEconomic Journal of Emerging Markets, 2009
Causality is an important concept in applied econometrics. It helps us to identify the direction which variable is a cause (policy) and which one is an impact.
Haryo Kuncoro
doaj   +7 more sources

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