Weekly Papers on Quantum Foundations (33)

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Sung-Sik Lee

Fri Aug 23 2024 12:15:38 (21 hours)

# 1.

arXiv:2408.11905v1 Announce Type: new Abstract: We propose that moments of time arise through the failed emergence of the temporal diffeomorphism as gauge symmetry, and that the passage of time is a continual process of an instantaneous state collapsing toward a gauge-invariant state. Unitarity and directedness of the resulting time evolution are demonstrated for a minisuperspace model of cosmology.

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PRL

V. Vilasini and Renato Renner

Thu Aug 22 2024 18:00:00 (1 day)

# 2.

Author(s): V. Vilasini and Renato Renner

In order for quantum processes with indefinite causal order to be realized on a classical spacetime, the inputs and outputs cannot be localized in spacetime.

[Phys. Rev. Lett. 133, 080201] Published Thu Aug 22, 2024

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Philipp Berghofer

Thu Aug 22 2024 12:02:18 (1 day)

# 3.

arXiv:2408.11705v1 Announce Type: new Abstract: There is noticeable consensus among physicists and philosophers that only gauge-invariant quantities can be physically real. However, this insight that physical quantities must be gauge-invariant is not well-reflected in standard approaches to particle physics. For instance, each and every elementary field/particle of the Standard Model fails to be gauge-invariant! The main objective of this paper is to offer an accessible, concise, and convincing analysis of why philosophers and physicists should devote more of their energy to working on gauge-invariant approaches. Correspondingly, the thesis of this paper is that pursuing gauge-invariant approaches has several virtues. For instance, gauge-invariant reformulations allow us to make particle physics consistent with the mathematical framework in which it is formulated. This is illustrated by how mathematical theorems such as Elitzur’s theorem, the Gribov ambiguity, and Haag’s theorem pose problems for standard approaches but are avoided by gauge-invariant approaches.

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Andrei Constantin, Deaglan Bartlett, Harry Desmond, Pedro G. Ferreira

Thu Aug 22 2024 12:02:17 (1 day)

# 4.

arXiv:2408.11065v1 Announce Type: cross Abstract: Physics, as a fundamental science, aims to understand the laws of Nature and describe them in mathematical equations. While the physical reality manifests itself in a wide range of phenomena with varying levels of complexity, the equations that describe them display certain statistical regularities and patterns, which we begin to explore here. By drawing inspiration from linguistics, where Zipf’s law states that the frequency of any word in a large corpus of text is roughly inversely proportional to its rank in the frequency table, we investigate whether similar patterns for the distribution of operators emerge in the equations of physics. We analyse three corpora of formulae and find, using sophisticated implicit-likelihood methods, that the frequency of operators as a function of their rank in the frequency table is best described by an exponential law with a stable exponent, in contrast with Zipf’s inverse power-law. Understanding the underlying reasons behind this statistical pattern may shed light on Nature’s modus operandi or reveal recurrent patterns in physicists’ attempts to formalise the laws of Nature. It may also provide crucial input for symbolic regression, potentially augmenting language models to generate symbolic models for physical phenomena. By pioneering the study of statistical regularities in the equations of physics, our results open the door for a meta-law of Nature, a (probabilistic) law that all physical laws obey.

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Henrique Gomes, Tushar Menon, Oliver Pooley, James Read

Wed Aug 21 2024 12:39:41 (2 days)

# 5.

arXiv:2408.10674v1 Announce Type: new Abstract: We show that the geometric structure of an arbitrary relativistic spacetime can be determined by the transformation groups associated with a collection of privileged coordinate systems.

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Pascal Marquet, Max Planck

Tue Aug 20 2024 14:56:35 (3 days)

# 6.

arXiv:2408.10023v1 Announce Type: new Abstract: An English (2024) translation (v1) by P. Marquet of the Max Planck’s 1911 paper “Energy and temperature” published first in French (“Energie et temp\’erature”, J. Phys. Theor. Appl., 1 (1), p.345-359) and then in German (“Energie und Temperatur”, Phys. Z., 12 (16), p.681-687).

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