Weekly Papers on Quantum Foundations (44)

上午11:20 | ScienceDirect Publication: Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern PhysicsScienceDirect RSShttps://www.sciencedirect.com/journal/studies-in-history-and-philosophy-of-science-part-b-studies-in-history-and-philosophy-of-modern-physicsRSS for NodeWed, 24 Jul 2019 09:46:42 GMTCopyright © 2019 Elsevier Ltd. All rights reservedImprints of the underlying structure of physical theoriesPublication date: Available online 12 July 2019Source: Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern PhysicsAuthor(s): Jorge ManeroAbstractIn the context of scientific realism, this paper intends to provide a formal and accurate description of the structural-based ontology posited by classical mechanics, quantum mechanics and special relativity, which is preserved across the empirical domains of these theories and explain their successful predictions. Along the lines of ontic structural realism, such a description is undertaken by

Publication date: Available online 5 November 2019

Source: Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics

Author(s): Tim Maudlin, Elias Okon, Daniel Sudarsky

Abstract

We start by surveying the history of the idea of a fundamental conservation law and briefly examine the role conservation laws play in different classical contexts. In such contexts we find conservation laws to be useful, but often not essential. Next we consider the quantum setting, where the conceptual problems of the standard formalism obstruct a rigorous analysis of the issue. We then analyze the fate of energy conservation within the various viable paths to address such conceptual problems; in all cases we find no satisfactory way to define a (useful) notion of energy that is generically conserved. Finally, we focus on the implications of this for the semiclassical gravity program and conclude that Einstein’s equations cannot be said to always hold.

2019年11月8日 星期五 下午3:16 | Philsci-Archive: No conditions. Results ordered -Date Deposited.
Henriksson, Andreas (2019) On the second law of thermodynamics. [Preprint]
2019年11月8日 星期五 下午3:13 | Philsci-Archive: No conditions. Results ordered -Date Deposited.
Wallace, David (2019) Isolated Systems and their Symmetries, Part I: General Framework and Particle-Mechanics Examples. [Preprint]
2019年11月8日 星期五 下午3:12 | Philsci-Archive: No conditions. Results ordered -Date Deposited.
Wallace, David (2019) Isolated systems and their symmetries, part II: local and global symmetries of field theories. [Preprint]
2019年11月8日 星期五 下午3:11 | Philsci-Archive: No conditions. Results ordered -Date Deposited.
Wallace, David (2019) Observability, redundancy and modality for dynamical symmetry transformations. [Preprint]
2019年11月8日 星期五 上午8:00 | Latest Results for Synthese

Abstract

Super-Humeanism is an even more parsimonious ontology than Lewisian standard Humean metaphysics in that it rejects intrinsic properties (local qualties). There are point objects, but all there is to them are their relative positions (distance relations) and the change of them. Everything else supervenes on the Humean mosaic thus conceived. Hence, dynamical parameters (such as mass, charge, energy, a wave-function, etc.) come in on a par with the laws through their position in the best system. The paper sets out how Super-Humeanism has the conceptual means to reject van Inwagen’s consequence argument not by taking the laws to depend on us (as on standard Humean metaphysics), but by taking the initial values of the dynamical parameters that enter into the laws to be dependent on the motions that actually occur in the universe, including the motions of human bodies. The paper spells out the advantages of this proposal.

2019年11月7日 星期四 下午3:11 | Philsci-Archive: No conditions. Results ordered -Date Deposited.
Tappenden, Paul (2019) Everettian theory as pure wave mechanics plus a no-collapse probability postulate. [Preprint]
2019年11月7日 星期四 下午3:04 | Philsci-Archive: No conditions. Results ordered -Date Deposited.
Oldofredi, Andrea and Esfeld, Michael (2019) Observability, Unobservability and the Copenhagen Interpretation in Dirac’s Methodology of Physics. [Preprint]
2019年11月7日 星期四 下午3:01 | Philsci-Archive: No conditions. Results ordered -Date Deposited.
Klein, Ulf (2019) From probabilistic mechanics to quantum theory. Quantum Studies: Mathematics and Foundations.
2019年11月5日 星期二 下午6:00 | Álvaro M. Alhambra, Georgios Styliaris, Nayeli A. Rodríguez-Briones, Jamie Sikora, and Eduardo Martín-Martínez | PRL: General Physics: Statistical and Quantum Mechanics, Quantum Information, etc.

Author(s): Álvaro M. Alhambra, Georgios Styliaris, Nayeli A. Rodríguez-Briones, Jamie Sikora, and Eduardo Martín-Martínez

We examine when it is possible to locally extract energy from a bipartite quantum system in the presence of strong coupling and entanglement, a task which is expected to be restricted by entanglement in the low-energy eigenstates. We fully characterize this distinct notion of “passivity” by finding …

[Phys. Rev. Lett. 123, 190601] Published Tue Nov 05, 2019

2019年11月5日 星期二 下午4:01 | Philsci-Archive: No conditions. Results ordered -Date Deposited.
Fortin, Sebastian and Lombardi, Olimpia (2019) The correspondence principle and the understanding of decoherence. [Preprint]
2019年11月5日 星期二 下午3:59 | Philsci-Archive: No conditions. Results ordered -Date Deposited.
Evans, Peter W. (2019) Perspectival Objectivity or: How I Learned to Stop Worrying and Love Observer-Dependent Reality. [Preprint]
2019年11月5日 星期二 上午8:56 | Philsci-Archive: No conditions. Results ordered -Date Deposited.
Landsman, Klaas (2019) Quantum theory and functional analysis. [Preprint]
2019年11月5日 星期二 上午8:56 | Philsci-Archive: No conditions. Results ordered -Date Deposited.
Bacelar Valente, Mario (2019) Geometry of motion: some elements of its historical development. Artefactos. Revista de estudios sobre la ciencia y la tecnología, 8 (2). pp. 4-26. ISSN 1989-3612
2019年11月5日 星期二 上午8:56 | Philsci-Archive: No conditions. Results ordered -Date Deposited.
Sant’Anna, Adonai and Bueno, Otávio and Palmares, Márcio (2019) Follow the Flow: sets, relations, and categories as special cases of functions with no domain. UNSPECIFIED.
2019年11月5日 星期二 上午8:00 | Latest Results for Synthese

Abstract

In this paper I challenge two widespread convictions about unification in physics: (1) unification is an aim of physics and (2) unification is driven by metaphysical or metatheoretical presuppositions. I call these external explanations of why there is unification in physics. Against this, I claim that (a) unification is a by-product of physical research and (b) unification is driven by basic methodological strategies of physics alone (without any appeal to metaphysical or metatheoretical presuppositions). I call this an internal (or methodological) explanation of why there is unification in physics. To support my claims, I will investigate the actual practice undertaken in physics in paradigmatic examples of unification.

2019年11月4日 星期一 上午8:00 | Mark Buchanan | Nature Physics – Issue – nature.com science feeds

Nature Physics, Published online: 04 November 2019; doi:10.1038/s41567-019-0711-5

Leibniz’s principle of indistinguishability

2019年11月4日 星期一 上午8:00 | Nature Physics – Issue – nature.com science feeds

Nature Physics, Published online: 04 November 2019; doi:10.1038/s41567-019-0721-3

The demonstration of a quantum computational advantage is a milestone worth celebrating.

2019年11月4日 星期一 上午8:00 | Justin C. W. Song | Nature Physics – Issue – nature.com science feeds

Nature Physics, Published online: 04 November 2019; doi:10.1038/s41567-019-0708-0

An experiment using ultrafast light pulses demonstrates how to induce a transient chiral electron state in a trivial semimetal.

2019年11月4日 星期一 上午8:00 | Latest Results for Foundations of Physics

Abstract

What is simultaneous with an event is what can interact with it; events have duration; therefore, any given event has distant events simultaneous with it, even according to Special Relativity. Consequently, the extension of our pre-relativistic judgments of distant simultaneity are largely preserved.

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