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Quantum electrodynamics with arbitrary charge on a noncommutative space
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作者 周挽平 蔡绍洪 隆正文 《Chinese Physics C》 SCIE CAS CSCD 2009年第1期10-14,共5页
Using the Seiberg-Witten map, we obtain a quantum electrodynamics on a noncommutative space, which has arbitrary charge and keep the gauge invariance to at the leading order in theta. The one-loop divergence and Compt... Using the Seiberg-Witten map, we obtain a quantum electrodynamics on a noncommutative space, which has arbitrary charge and keep the gauge invariance to at the leading order in theta. The one-loop divergence and Compton scattering are reinvestigated. The noncommutative effects are larger than those in ordinary noncommutative quantum electrodynamics. 展开更多
关键词 noncommutative quantum electrodynamics charge
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Atomic structure and collision dynamics with highly charged ions 被引量:1
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作者 Xinwen Ma Shaofeng Zhang +11 位作者 Weiqiang Wen Zhongkui Huang Zhimin Hu Dalong Guo Junwen Gao Bennaceur Najjari Shenyue Xu Shuncheng Yan Ke Yao Ruitian Zhang Yong Gao Xiaolong Zhu 《Chinese Physics B》 SCIE EI CAS CSCD 2022年第9期13-40,共28页
The research progresses on the investigations of atomic structure and collision dynamics with highly charged ions based on the heavy ion storage rings and electron ion beam traps in recent 20 years are reviewed.The st... The research progresses on the investigations of atomic structure and collision dynamics with highly charged ions based on the heavy ion storage rings and electron ion beam traps in recent 20 years are reviewed.The structure part covers test of quantum electrodynamics and electron correlation in strong Coulomb field studied through dielectronic recombi-nation spectroscopy and VUV/x-ray spectroscopy.The collision dynamics part includes charge exchange dynamics in ion-atom collisions mainly in Bohr velocity region,ion-induced fragmentation mechanisms of molecules,hydrogen-bound and van de Waals bound clusters,interference,and phase information observed in ion-atom/molecule collisions.With this achievements,two aspects of theoretical studies related to low energy and relativistic energy collisions are presented.The applications of data relevant to key atomic processes like dielectronic recombination and charge exchanges involving highly charged ions are discussed.At the end of this review,some future prospects of research related to highly charged ions are proposed. 展开更多
关键词 highly charged ion atomic structure collision dynamics quantum electrodynamics fragmentation mechanisms relativistic effects electron correlation
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Intrinsic Particle Charges and the Strong Force
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作者 Bo Lehnert 《Journal of Modern Physics》 2017年第7期1053-1066,共14页
Starting from a revised quantum electrodynamic theory by the author, an attempt is made to elaborate a particle model of quarks which in their turn form triangular neutron and proton configurations. These “quark part... Starting from a revised quantum electrodynamic theory by the author, an attempt is made to elaborate a particle model of quarks which in their turn form triangular neutron and proton configurations. These “quark particles” are found to be electrically neutral but contain intrinsic electrical charges of both polarities, being an order of magnitude larger than the elementary charge, e. The main interaction force between two such particles is further found to have an attractive short-range character, and it becomes nearly two orders of magnitude larger than the repulsive force which would arise from two interacting elementary charges. The spatial potential distribution of this force corresponds to an inner barrier, an intermediate well, and an outer barrier. The well is found to have a depth being nearly equal to the binding energy 8 MeV of the neutron. The distribution of the barriers and the well makes a stable position possible for the mutual particle distance. The deduced radii of the outer shell and of the core are further of the same magnitude as the known nuclear radii of the neutron and proton. All these deduced characteristic features are the same as those of the known strong force concept. This raises the question whether the present results could provide a first step in a unification of the electromagnetic and the strong nuclear forces. 展开更多
关键词 quantum electrodynamics Zero Point Energy INTRINSIC Particle chargeS STRONG FORCE
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Application of Electrodynamic Theory on Quantum Hall Effect
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作者 Saleem Iqbal Muhammad Zafar +2 位作者 Farhana Sarwar Syed Mohsin Raza Muhammad Afzal Rana 《World Journal of Condensed Matter Physics》 CAS 2016年第2期87-94,共8页
The quantum electrodynamic (QED) behaviour is studied for quantum Hall effect (QHE). Quantum theory with conjecture of fractional charge quantization (quantum dipole moment), eigenfunctions for fractional charge quant... The quantum electrodynamic (QED) behaviour is studied for quantum Hall effect (QHE). Quantum theory with conjecture of fractional charge quantization (quantum dipole moment), eigenfunctions for fractional charge quantization at the surface of a twisted and twigged electron quanta and above its surface, fractional Fourier transform and Hermite function for fractional charge quantization is developed. With energy eigen value equation for QHE and with energy operator on an eigenfunction of a twisted and twigged electron quanta, the corresponding eigenfunctions are normalized with Schrodinger’s quantum wave mechanical equation for electric scalar and magnetic potentials, respectively (QED behavior). The fractional electric and magnetic fields with their corresponding potentials for the quantized fractional states in semiconducting hereto structures are theoretically calculated. Such mathematical expressions are in good agreement with experimental results of Nobel Prize winning scientists Klitzing, Haroche, Peter and Gruebber. Our results can also explain the hybridized states of orbits with emphasis on sigma and pi bonding and their corresponding antibonding orbitals as a manifestation of electrophilic and nucleophilic chemical reactions. 展开更多
关键词 Fractional charge Quantization Fractional Fourier Transform quantum Hall Effect quantum electrodynamics Electron Quanta String Twisted and Twigged Electron Quanta
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高电荷态类硼离子^(2)P_(3/2)—^(2)P_(1/2)跃迁的实验和理论研究进展
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作者 刘鑫 汶伟强 +2 位作者 李冀光 魏宝仁 肖君 《物理学报》 SCIE EI CAS CSCD 北大核心 2024年第20期22-35,共14页
高电荷态离子(highly charged ion,HCI)的精细结构及辐射跃迁性质的精确测量不仅可以检验基本物理模型,包括:强场量子电动力学(quantum electrodynamics,QED)效应、电子关联效应、相对论效应、原子核效应等,而且能够为天体物理和聚变等... 高电荷态离子(highly charged ion,HCI)的精细结构及辐射跃迁性质的精确测量不仅可以检验基本物理模型,包括:强场量子电动力学(quantum electrodynamics,QED)效应、电子关联效应、相对论效应、原子核效应等,而且能够为天体物理和聚变等离子体物理提供关键原子物理参数.相对于研究较多的类氢和类锂离子体系,类硼离子的精细结构禁戒跃迁的相对论效应和QED效应的贡献很大,高精度实验测量与理论计算为进一步检验多电子体系的基本物理模型提供了重要途径.此外,类硼离子也被认为是最佳的高电荷态离子光钟候选体系.本文主要介绍了类硼离子基态^(2)P_(3/2)—^(2)P_(1/2)跃迁的实验和理论研究最新进展,概述了其精细结构和超精细结构的研究现状,并讨论了使用电子束离子阱结合高分辨光谱学实验技术开展类硼离子超精细分裂实验测量的方案,为未来开展类硼离子超精细分裂实验研究并在更高精度上检验QED效应,提取原子核磁化分布半径,检验相关的核结构模型等研究提供了参考. 展开更多
关键词 高电荷态离子 超精细结构 量子电动力学 高电荷态离子光钟
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