Foundations of Physics最新文献_第3页

From Hamilton-Jacobi to Bohm: Why the Wave Function Isn’t Just Another Action 从汉密尔顿-雅可比到玻姆：为什么波函数不只是另一种作用

IF 1 3区物理与天体物理

Foundations of Physics Pub Date : 2025-06-21 DOI: 10.1007/s10701-025-00865-y

Arnaud Amblard, Aurélien Drezet

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引用次数: 0

Relational Properties and Relational Quantum Mechanics 关系性质和关系量子力学

IF 1 3区物理与天体物理

Foundations of Physics Pub Date : 2025-06-21 DOI: 10.1007/s10701-025-00867-w

Vincenzo Fano, Marco Sanchioni

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The Classical and Quantum Relativistic Cherenkov’s Radiation in the Presence of Conductor Magneto-Dielectric Media 导体磁介质存在下的经典和量子相对论切伦科夫辐射

IF 1 3区物理与天体物理

Foundations of Physics Pub Date : 2025-06-12 DOI: 10.1007/s10701-025-00860-3

Majid Amooshahi

{"title":"The Classical and Quantum Relativistic Cherenkov’s Radiation in the Presence of Conductor Magneto-Dielectric Media","authors":"Majid Amooshahi","doi":"10.1007/s10701-025-00860-3","DOIUrl":"10.1007/s10701-025-00860-3","url":null,"abstract":"<div><p>The polarization,magnetization and conductivity features of a conductor polarizable and magnetizable medium are described by a continuum collection of the antisymmetric tensor fields and a continuum collection of the vector fields in the Minkowski’s space-time. The conservation principle of the energy-momentum four-vector of the total system is provided in a fully canonical approach. The conservation principle of the energy-momentum four-vector of the total system gives the force four-vector on the free external charges moving in the conductor magneto-dielectric medium. The total classical relativistic Cherenkov’s radiation power emerged by a charged particle uniformly moving inside the medium is calculated. The quantum relativistic Cherenkov’s radiation power of a charged particle moving inside a homogeneous conductor magneto-dielectric medium is calculated by two methods. In the first method the motion of the charged particle is described by the relativistic quantum mechanics. The quantum relativistic Cherenkov’s radiation power of the charged particle moving in the medium is calculated in the initial state that the charged particle is in a very sharp normalized distribution in the momentum space and the quantum relativistic fields describing the medium are in the vacuum states. In the second approach the motion of an electron moving in the medium is described by the quantum relativistic Dirac’s field. The quantum relativistic Cherenkov’s radiation power of the electron moving in the medium is computed in the initial state that the quantum relativistic Dirac’s field is contained an electron with a definite spin and a very sharp normalized distribution in the momentum space and the quantum relativistic dynamical fields modeling the medium are in the vacuum states. The two methods of the calculation of the quantum relativistic Cherenkov’s radiation power of the electron moving inside the conductor magneto-dielectric medium are compared.</p></div>","PeriodicalId":569,"journal":{"name":"Foundations of Physics","volume":"55 3","pages":""},"PeriodicalIF":1.0,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145164212","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

The estimation of the mean value of copies of uncertain positions and its relation to the basic structure of quantum mechanics 不确定位置复本均值的估计及其与量子力学基本结构的关系

IF 1 3区物理与天体物理

Foundations of Physics Pub Date : 2025-06-09 DOI: 10.1007/s10701-025-00863-0

Zinoviy Landsman, Tomer Shushi

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How Anomalous is the Electron’s Magnetic Moment? 电子的磁矩有多反常？

IF 1 3区物理与天体物理

Foundations of Physics Pub Date : 2025-06-07 DOI: 10.1007/s10701-025-00846-1

Charles T. Sebens

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Peeking Inside the Black Hole Philosophical Considerations on the AMPSS Paradox and its Resolution 黑洞透视：关于AMPSS悖论及其解决的哲学思考

IF 1 3区物理与天体物理

Foundations of Physics Pub Date : 2025-06-07 DOI: 10.1007/s10701-025-00861-2

Enrico Cinti, Marco Sanchioni

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Ultradecoherence Model of the Measurement Process 测量过程的超相干模型

IF 1 3区物理与天体物理

Foundations of Physics Pub Date : 2025-06-06 DOI: 10.1007/s10701-025-00854-1

Hai-Chau Nguyen

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Coarse-grained Entropy Balance of the Szilard Engine Szilard机的粗粒度熵平衡

IF 1 3区物理与天体物理

Foundations of Physics Pub Date : 2025-05-31 DOI: 10.1007/s10701-025-00859-w

Heinz-Jürgen Schmidt, Thomas Bröcker

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Are Hilbert Spaces Unphysical? Hardly, My Dear! 希尔伯特空间是非物理的吗？不，亲爱的！

IF 1 3区物理与天体物理

Foundations of Physics Pub Date : 2025-05-31 DOI: 10.1007/s10701-025-00858-x

Nivaldo A. Lemos

{"title":"Are Hilbert Spaces Unphysical? Hardly, My Dear!","authors":"Nivaldo A. Lemos","doi":"10.1007/s10701-025-00858-x","DOIUrl":"10.1007/s10701-025-00858-x","url":null,"abstract":"<div><p>It is widely accepted that the states of any quantum system are vectors in a Hilbert space. Not everyone agrees, however. The recent paper “The unphysicality of Hilbert spaces” by Carcassi, Calderón and Aidala is a thoughtful dissection of the mathematical structure of quantum mechanics that seeks to pinpoint supposedly unsurmountable difficulties inherent in postulating that the physical states are elements of a Hilbert space. Its pivotal charge against Hilbert spaces is that by a change of variables, which is a change-of-basis unitary transformation, one “can map states with finite expectation values to those with infinite ones”. In the present work it is shown that this statement is incorrect and the source of the error is spotted. In consequence, the purported example of a time evolution that makes “the expectation value oscillate from finite to infinite in finite time” is also faulty, and the assertion that Hilbert spaces “turn a potential infinity into an actual infinity” is unsubstantiated. Two other objections to Hilbert spaces on physical grounds, both technically correct, are the isomorphism of separable Hilbert spaces and the unavoidable existence of infinite-expectation-value states. The former turns out to be quite irrrelevant but the latter remains an issue without a fully satisfactory solution, although the evidence so far is that it is physically innocuous. All in all, while the authors’ thesis that Hilbert spaces must be given up deserves some attention, it is a long way from being persuasive as it is founded chiefly on a misconception and, subsidiarily, on immaterial or flimsy arguments.</p></div>","PeriodicalId":569,"journal":{"name":"Foundations of Physics","volume":"55 3","pages":""},"PeriodicalIF":1.0,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145171072","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

Aharonov-Bohm Effect for Bound States in a (mathcal{P}mathcal{T})-symmetric Hamiltonian in a Rotating Reference Frame 旋转参考系中(mathcal{P}mathcal{T}) -对称哈密顿量中束缚态的Aharonov-Bohm效应

IF 1 3区物理与天体物理

Foundations of Physics Pub Date : 2025-05-29 DOI: 10.1007/s10701-025-00855-0

K. Bakke

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