Weekly Papers on Quantum Foundations (19)

Diffeomorphism invariance and general covariance: a pedagogical introduction 

from 

physics.hist-ph

 by 

Mateo Casariego

Fri May 17 2024 14:27:26 (17 hours)

# 1.

arXiv:2405.09703v1 Announce Type: cross Abstract: Diffeomorphism invariance is a feature that gets sometimes highlighted as something with profound implications in the physics of spacetime. Moreover, it is often wrongly associated exclusively with General Relativity. The fact that diffeomorphism invariance and general covariance are used interchangeably does not help. Here, we attempt at clarifying these concepts.

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A New Approach to Understanding Quantum Mechanics: Illustrated Using a Pedagogical Model over ℤ2 

from 

philsci

Thu May 16 2024 16:12:17 (1 day)

# 2.

Ellerman, David (2024) A New Approach to Understanding Quantum Mechanics: Illustrated Using a Pedagogical Model over ℤ2. AppliedMath (MDPI), 4 (2). pp. 468-494.

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An indeterminacy-based ontology for quantum theory 

from 

philsci

Thu May 16 2024 11:04:57 (1 day)

# 3.

Pipa, Francisco (2024) An indeterminacy-based ontology for quantum theory. [Preprint]

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Dynamical Explanation of the Dark Matter and Baryon Energy Density Coincidence 

from 

PRL

 by 

Dawid Brzeminski and Anson Hook

Thu May 16 2024 06:00:00 (2 days)

# 4.

Author(s): Dawid Brzeminski and Anson Hook

The near equality of the dark matter and baryon energy densities is a remarkable coincidence, especially when one realizes that the baryon mass is exponentially sensitive to UV parameters in the form of dimensional transmutation. We explore a new dynamical mechanism, where in the presence of an arbi…

[Phys. Rev. Lett. 132, 201001] Published Thu May 16, 2024

arxiv > hep-th > arXiv:2405.09366

sQFT — an autonomous explanation of the interactions of quantum particles

K.-H. RehrenL.T. CardosoC. GassJ.M. Gracia-BondíaB. SchroerJ.C. Várilly

Successful applications of a conceptually novel setup of Quantum Field Theory, that accounts for all subtheories of the Standard Model (QED, Electroweak Interaction and Higgs, Yang-Mills and QCD) and beyond (Helicity 2), call for a perspective view in a broader conceptual context. The setting is “autonomous” in the sense of being intrinsically quantum. Its principles are: Hilbert space, Poincaré symmetry and causality. Its free quantum fields are obtained from Wigner’s unitary representations of the Poincaré group, with only physical and observable degrees of freedom. A “quantization” of an “underlying” classical theory is not needed. It allows renormalizable perturbation theory with interactions whose detailed structure, and in some cases even the particle content, is predicted by internal consistency. The results confirm and extend observable predictions for the interactions of the SM without assuming a “principle” of gauge invariance.

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