Foundations of Physics最新文献_第3页

Is String Field Theory Background Independent? 弦场论背景独立吗？

IF 1 3区物理与天体物理

Foundations of Physics Pub Date : 2026-04-22 DOI: 10.1007/s10701-026-00925-x

Matěj Krátký, Bhanu Narra, James Read

{"title":"Is String Field Theory Background Independent?","authors":"Matěj Krátký, Bhanu Narra, James Read","doi":"10.1007/s10701-026-00925-x","DOIUrl":"10.1007/s10701-026-00925-x","url":null,"abstract":"<div>\u0000 \u0000 <p>String field theory is supposed to stand to perturbative string theory as quantum field theory stands to single-particle quantum theory; as such, it purports to offer a substantially more general and powerful perspective on string theory than the perturbative approach. In addition, string field theory has been claimed for several decades to liberate string theory from any fixed, background spatiotemporal commitments—thereby (if true) rendering it ‘background independent’. But is this really so? In this article, we undertake a detailed interrogation of this claim, finding that the verdict is sensitive both to one’s understanding of the notion of background independence, and also to how one understands string field theory itself. Although in the end our verdicts on the question of the background independence are therefore somewhat mixed, we hope that our study will elevate the levels of systematicity and rigour in these discussions, as well as equip philosophers of physics with a helpful introduction to string field theory and the variety of interesting conceptual questions which it raises.</p>\u0000 </div>","PeriodicalId":569,"journal":{"name":"Foundations of Physics","volume":"56 3","pages":""},"PeriodicalIF":1.0,"publicationDate":"2026-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10701-026-00925-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147727446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Diffraction and Interference Phenomena with de Broglie Gravitational Waves 德布罗意引力波的衍射和干涉现象

IF 1 3区物理与天体物理

Foundations of Physics Pub Date : 2026-04-13 DOI: 10.1007/s10701-026-00926-w

Luca D’Errico

{"title":"Diffraction and Interference Phenomena with de Broglie Gravitational Waves","authors":"Luca D’Errico","doi":"10.1007/s10701-026-00926-w","DOIUrl":"10.1007/s10701-026-00926-w","url":null,"abstract":"<div><p>De Broglie gravitational waves form an axially symmetric class of vacuum solutions of the linearized Einstein equations. Unlike the well-known massless transverse perturbations in the weak-field regime, they possess an effective mass and exhibit longitudinal degrees of freedom, allowing them to act as guiding fields for elementary particles. In this paper, we show that the dynamics of the de Broglie gravitational wave, described in terms of the real part of a classical field <span>(psi)</span>, is compatible with single particle Quantum Mechanics, and that the complex field <span>(psi)</span> can be interpreted as the single particle wave function. In particular, we find that <span>(psi)</span> satisfies the Schrödinger equation for a free particle and, using the principles of gravitational lensing, the same holds in the presence of a weak central potential. We show that when our gravitational wave passes through two closely separated slits, it diffracts and interferes, creating the characteristic pattern of bright and dark bands observed in quantum experiments. We propose two different interpretations: a wave-particle picture, in which wave and particle are two distinct entities, and an effective background field perspective, in the spirit of soliton theory. A variant of the double-slit experiment that could serve, in principle, as an experimental test of the proposed framework is also discussed.</p></div>","PeriodicalId":569,"journal":{"name":"Foundations of Physics","volume":"56 2","pages":""},"PeriodicalIF":1.0,"publicationDate":"2026-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147737399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Heptalemma for Quantum Mechanics 量子力学的七构象

IF 1 3区物理与天体物理

Foundations of Physics Pub Date : 2026-04-07 DOI: 10.1007/s10701-026-00919-9

John B. DeBrota, Christian List

引用次数: 0

From Complementarity to Quantum Properties: An Operational Reconstructive Approach 从互补性到量子性质：一种操作重构方法

IF 1 3区物理与天体物理

Foundations of Physics Pub Date : 2026-03-25 DOI: 10.1007/s10701-026-00922-0

Philip Goyal

引用次数: 0

(Pre-) Causality and the Lorentz Transformations （前）因果关系和洛伦兹变换

IF 1 3区物理与天体物理

Foundations of Physics Pub Date : 2026-03-18 DOI: 10.1007/s10701-026-00920-2

Enrico Menotti

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Contextual Bohmian Quantum Field Theories: A Hylomorphic Approach to QFT 上下文波西米亚量子场论：量子傅立叶变换的一种同形方法

IF 1 3区物理与天体物理

Foundations of Physics Pub Date : 2026-03-16 DOI: 10.1007/s10701-026-00923-z

William M. R. Simpson

{"title":"Contextual Bohmian Quantum Field Theories: A Hylomorphic Approach to QFT","authors":"William M. R. Simpson","doi":"10.1007/s10701-026-00923-z","DOIUrl":"10.1007/s10701-026-00923-z","url":null,"abstract":"<div>\u0000 \u0000 <p>We propose an extension of Bell-type Bohmian quantum field theories, called <i>Contextual Bohmian Quantum Field Theory</i> (CBQFT), which integrates micro-level dynamics and macro-level contextual structure within a unified, ontologically explicit formalism. CBQFT introduces classical variables <span>(Lambda)</span> that encode macroscopic contexts—such as detector configurations, thermal phases, or symmetry-breaking sectors—and allows these to modulate the underlying quantum dynamics in a lawlike way. We develop two versions of the model. CBQFT-1 treats context as a fixed but dynamically influential background, entering via a context-sensitive Hamiltonian and modified Bell-type jump rates on a single Fock space. CBQFT-2 upgrades context to a <i>dynamical</i> variable co-evolving with the particle (or field) configuration: <span>(Lambda (x,t))</span> selects a (typically inequivalent) representation of the field algebra on a Hilbert space, wavefunctions are realised as global sections of the resulting Hilbert bundle, and Bohmian trajectories are guided by globally well-defined velocity fields constructed from local currents. Context transitions in CBQFT-2 are governed by a stochastic kernel informed by particle (or field) configurations and histories. This yields a Bohmian QFT with an explicit feedback loop between quantum events and macroscopic structure, offering a hylomorphic account of measurement, decoherence, and top–down causation.</p>\u0000 </div>","PeriodicalId":569,"journal":{"name":"Foundations of Physics","volume":"56 2","pages":""},"PeriodicalIF":1.0,"publicationDate":"2026-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10701-026-00923-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147559567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Wigner’s Diamond and the Quantum Fragmentation of Space-time 维格纳的钻石和时空的量子碎片

IF 1 3区物理与天体物理

Foundations of Physics Pub Date : 2026-03-13 DOI: 10.1007/s10701-026-00915-z

Jacques L. Pienaar

引用次数: 0

Correction to Article “Free Electron Paths from Dirac’s Wave Equation Elucidating Zitterbewegung and Spin” in Foundations of Physics (2026) 56:10 修正《物理学基础》（2026）56:10文章“从狄拉克波方程中解释自旋和自旋的自由电子路径”

IF 1 3区物理与天体物理

Foundations of Physics Pub Date : 2026-02-26 DOI: 10.1007/s10701-026-00921-1

James L. Beck

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Mass-Dependent Minimal Length and Deformed Quantum Mechanics from Heterotic String Theory 质量依赖的最小长度和来自异质弦理论的变形量子力学

IF 1 3区物理与天体物理

Foundations of Physics Pub Date : 2026-02-21 DOI: 10.1007/s10701-026-00917-x

Arshid Shabir, Mir Faizal

{"title":"Mass-Dependent Minimal Length and Deformed Quantum Mechanics from Heterotic String Theory","authors":"Arshid Shabir, Mir Faizal","doi":"10.1007/s10701-026-00917-x","DOIUrl":"10.1007/s10701-026-00917-x","url":null,"abstract":"<div>\u0000 \u0000 <p>A first-principles derivation of deformed quantum mechanics is presented for the <span>(alpha ')</span>-corrected heterotic string. Upon compactification, the leading corrections induces a quartic momentum correction term to a scalar dispersion relation. This modification is precisely equivalent to a deformed canonical commutator whose single deformation parameter is set by the Calabi-Yau volume, internal curvature, and background fluxes, thereby establishing a finite minimal length. Positivity of the four-derivative coupling confines the Lee-Wick ghost to scales far above the higher-derivative cutoff, whose value and thus the threshold for stringy corrections is fixed by the same geometric data. Moreover, these inputs can amplify the deformation, pushing the minimal length well beyond the string scale. Earlier proposals based on generalized-uncertainty-principle deformations suggested, on purely phenomenological grounds, that quantum-gravity effects might emerge at such elevated scales; the present analysis provides the first rigorous string-theoretic foundation for that scenario. Finally, unlike standard phenomenological models, the deformation derived here depends on the probe mass, yielding significant implications for important physical problems such as species-sensitive black-hole bounds.</p>\u0000 </div>","PeriodicalId":569,"journal":{"name":"Foundations of Physics","volume":"56 2","pages":""},"PeriodicalIF":1.0,"publicationDate":"2026-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147341341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Addendum: A Note on the Electron’s Magnetic Moment 附录：关于电子磁矩的注解

IF 1 3区物理与天体物理

Foundations of Physics Pub Date : 2026-02-21 DOI: 10.1007/s10701-026-00912-2

Marco Sanchioni

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