现代物理(英文)最新文献_第4页

Photon Structure and Wave Function from the Vector Potential Quantization 光子结构和波函数的矢量势量子化

现代物理(英文) Pub Date : 2023-01-01 DOI: 10.4236/jmp.2023.143020

C. Meis

引用次数: 0

Explanation of Cold Nuclear Fusion and Biotransmutations 解释冷核聚变和生物嬗变

现代物理(英文) Pub Date : 2023-01-01 DOI: 10.4236/jmp.2023.147060

A. Meessen

引用次数: 2

A Study of Entropy Change in a Spin Quantum System 自旋量子系统的熵变研究

现代物理(英文) Pub Date : 2023-01-01 DOI: 10.4236/jmp.2023.147057

P. Bracken

引用次数: 0

A Physical Interpretation of Mass-Energy Equivalence Based on the Orthogonal Collision 基于正交碰撞的质能等效的物理解释

现代物理(英文) Pub Date : 2023-01-01 DOI: 10.4236/jmp.2023.147059

W. Qian

引用次数: 2

Applications of Floquet-Magnus and Fer Expansion Approaches during Cross Polarization Radiation in Solid State NMR Floquet-Magnus和Fer展开方法在固态核磁共振交叉极化辐射中的应用

现代物理(英文) Pub Date : 2023-01-01 DOI: 10.4236/jmp.2023.147062

E. Mananga, T. Charpentier

{"title":"Applications of Floquet-Magnus and Fer Expansion Approaches during Cross Polarization Radiation in Solid State NMR","authors":"E. Mananga, T. Charpentier","doi":"10.4236/jmp.2023.147062","DOIUrl":"https://doi.org/10.4236/jmp.2023.147062","url":null,"abstract":"This paper investigates the concept of Cross Polarization (CP) experiment in addition to revisiting the two potential expansion schemes recently developed in the field of solid-state nuclear magnetic resonance (SSNMR): namely, the Floquet-Magnus expansion and the Fer expansion. We use the aforementioned expansion schemes for the calculation of effective Hamiltonians and propagators when the spin system undergoes Cross Polarization radiation. CP is the gateway experiment into SSNMR. An in-depth comprehension of the underlying mechanics of spin dynamics during the cross-polarization ex-periment is pivotal for further experimental developments and optimization of more complex solid-state NMR experiments. The main contribution of this work is a prospect related to spin physics; particularly regarding to generalization of the calculation. This work reports original yet interesting novel ideas and developments that include calculations performed on the CP expe-riment. In fact, the approach presented could play a major role in the interpretation of several fine NMR experiments in solids, which would in turn provide significant new insights in spin physics. The generality of the work points towards potential applications in problems related in solid-state NMR and theoretical developments of spectroscopy as well as interdisciplinary research areas as long as they include spin dynamics concepts.","PeriodicalId":70853,"journal":{"name":"现代物理(英文)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70394538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electron Shape Calculated for the Dual-Charge Dual-Mass Model 双电荷双质量模型的电子形状计算

现代物理(英文) Pub Date : 2023-01-01 DOI: 10.4236/jmp.2023.143014

Arlene Young

引用次数: 1

Disjointed Equivalence of Gravitational and Inertial Mass 重力质量和惯性质量的脱节等价

现代物理(英文) Pub Date : 2023-01-01 DOI: 10.4236/jmp.2023.143017

D. Pons

{"title":"Disjointed Equivalence of Gravitational and Inertial Mass","authors":"D. Pons","doi":"10.4236/jmp.2023.143017","DOIUrl":"https://doi.org/10.4236/jmp.2023.143017","url":null,"abstract":"Problem- Contemporary physics offers no underlying reason for the equivalence of inertial and gravitational mass. Approach- The equivalence is examined from the new physics provided by the cordus theory, being a non-local hidden-variable (NLHV) theory. Mathematical formalisms are derived for masses and observers in different fabric densities. Findings- A disjointed equivalence is predicted, whereby inertial and gravitational masses are equivalent in any one situation, but a different equivalence holds when the fabric densities change. Consequently this theory predicts that the gravitational constant G varies with fabric density, and hence would be different across the universe and across time. Not only is the gravitational constant non-constant, but the formulation of gravitation changes with fabric density. Specifically, the theory predicts gravity is stronger at genesis (and the end of the universe) such that orbit velocity 𝑣 𝐵 ∝ √ 𝑟 𝐵 (where 𝑟 𝐵 is orbit radius), compared to weaker gravitation at middle life epochs with 𝑣 𝐵 ∝ 1 √𝑟 𝐵 . The current Earth location and epoch correspond to the latter case, i.e. Newtonian gravitation is recovered. The findings disfavour the existence of both dark energy and dark matter, and instead attribute these effects to differences in the fabric density. Originality – The work makes the contribution of deriving a mass equivalence relationship that includes fabric density, identifying a disjointed mass equivalence, and showing that the gravitation formulation itself changes with relative fabric densities.","PeriodicalId":70853,"journal":{"name":"现代物理(英文)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70392774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Imagine the World, New Insight into Creation, Gravity and Evolution 想象世界，创造新见解，重力和进化

现代物理(英文) Pub Date : 2023-01-01 DOI: 10.4236/jmp.2023.144027

Jarl-Thure Eriksson

引用次数: 0

On the Superconductivity in High-Entropy Alloy (NbTa)_1-X(HfZrTi)_X 高熵合金(NbTa)1-X(HfZrTi)的超导性研究

现代物理(英文) Pub Date : 2023-01-01 DOI: 10.4236/jmp.2023.144025

Snehadri B. Ota

引用次数: 0

The Significance of Generalized Gauge Transformation across Fundamental Interactions 跨基本相互作用的广义规范变换的意义

现代物理(英文) Pub Date : 2023-01-01 DOI: 10.4236/jmp.2023.145035

Bi Qiao

引用次数: 1