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Out of the four components of the electromagnetic field, Maxwell's theory only contains two physical degrees of freedom. However, in an expanding universe, consistently eliminating one of the "unphysical" states in the covariant…

宇宙学与河外天体物理 · 物理学 2014-11-20 Jose Beltran Jimenez , Antonio L. Maroto

The symmetry studies of Maxwell equations gave new insight on the nature of electromagnetic (EM) field. Tey are reviewed in the work presented. It is drawing the attention on the following aspects. EM-field has in general case quaternion…

数学物理 · 物理学 2013-07-11 Dmitri Yerchuck , Alla Dovlatova , Andrey Alexandrov

A quantum mechanics representation based on position ($\vec{r}$), linear momentum($\vec{p}$) and energy($E$) eigenvalues is presented here. A set of equations, explicitly independent on wave function, was derived relating these observables.…

量子物理 · 物理学 2019-03-22 Jeconias Rocha Guimarães

The Lorentz force equations provide a partial description of the geodesic motion of a charged particle on a four-manifold. Under the hypothesis that Maxwell's equations express symmetry properties of the Ricci tensor, the full…

数学物理 · 物理学 2007-05-23 Michael A. Graber

The interaction of the electric and magnetic dipole moments of a particle with the electromagnetic field is investigated in an approach that deals with four-dimensional (4D) geometric quantities. The new commutation relations for the 4D…

高能物理 - 理论 · 物理学 2011-11-09 Tomislav Ivezić

We show that there exists a choice of gauge in which the electromagnetic 4-potential may be written as the difference of two 4-velocity vector fields describing the motion of a two-component space-filling relativistic fluid. Maxwell's…

经典物理 · 物理学 2010-12-13 Sabbir Rahman

In the usual Clifford algebra formulation of electrodynamics the Faraday bivector field F is decomposed into the observer dependent sum of a relative vector E and a relative bivector e_5 B by making a space-time split, which depends on the…

高能物理 - 理论 · 物理学 2007-05-23 Tomislav Ivezic

Effective Riemann space effect of vacuum nonlinear electrodynamics is considered in the context of theory for unified gravitation and electromagnetism. The electromagnetic four-vector potential in the scope of Born-Infeld nonlinear…

广义相对论与量子宇宙学 · 物理学 2010-06-30 Alexander A. Chernitskii

The paper aims to extend major equations in the electromagnetic and gravitational theories from the flat space into the complex octonion curved space. Maxwell applied simultaneously the quaternion analysis and vector terminology to describe…

综合物理 · 物理学 2016-04-19 Zi-Hua Weng

The problem of determining the electromagnetic and gravitational ``self-force'' on a particle in a curved spacetime is investigated using an axiomatic approach. In the electromagnetic case, our key postulate is a ``comparison axiom'', which…

广义相对论与量子宇宙学 · 物理学 2011-08-17 Theodore C. Quinn , Robert M. Wald

The fundamental difference between the true transformations (TT) and the apparent transformations (AT) is explained. The TT refer to the same quantity, while the AT refer, e.g., to the same measurement in different inertial frames of…

综合物理 · 物理学 2007-05-23 Tomislav Ivezic

While the electromagnetic force is microscopically simply the Lorentz force, its macroscopic form is more complicated, and given by expressions such as the Maxwell stress tensor and the Kelvin force. Their derivation is fairly opaque, at…

软凝聚态物质 · 物理学 2012-07-23 Mario Liu , Klaus Stierstadt

An insight into bispinor analysis makes it possible to describe the electron in selfaction as a fundamental steady state. The electromagnetic theory, and the Dirac equation for the study of an electron in presence of external potentials,…

量子物理 · 物理学 2011-11-09 Yair Goldin

Maxwell equations provide a complete description of the electromagnetic (EM) phenomena, which have been one of the key fundamental-theories of modern physics, such as electromagnetism, optics, quantum theories, etc. The vacuum permittivity…

经典物理 · 物理学 2023-12-25 Zhiwei Sun

Electromagnetic potentials allow for an alternative description of the Maxwell field, the electric and magnetic components of which emerge as gradients of the vector and the scalar potential. We provide a general relativistic analysis of…

广义相对论与量子宇宙学 · 物理学 2022-04-01 Panagiotis Mavrogiannis , Christos G. Tsagas

Gauss integral theorems for electric and magnetic fields, Faradays law of electromagnetic induction, magnetic field circulation theorem, theorems on the flux and circulation of vector potential, which are valid in curved spacetime, are…

综合物理 · 物理学 2019-11-27 Sergey G. Fedosin

Using the Finite Difference Time Domain method, we solve Maxwell's equations numerically and compute the distribution of electromagnetic fields and forces inside material media. The media are generally specified by their dielectric…

光学 · 物理学 2013-08-19 Masud Mansuripur , Armis R. Zakharian , Ewan M. Wright

Two field 2-forms on the space-time manifold, in a relationship of duality, are presented and included in the extended phase-space structure used to describe relativistic particles having both electric and magnetic charges. By exterior…

数学物理 · 物理学 2010-11-30 M. Grigorescu

The symmetry studies of Maxwell equations gave new insight on the nature of electromagnetic (EM) field. It has in general case quaternion single structure, consisting of four independent field constituents, which differ with each other by…

量子物理 · 物理学 2011-09-21 Dmitri Yerchuck , Alla Dovlatova , Andrey Alexandrov

Nearly all field theories suffer from singularities when particles are introduced. This is true in both classical and quantum physics. Classical field singularities result in the notorious self-force problem, where it is unknown how the…

经典物理 · 物理学 2015-12-01 Yaron Hadad , Eliahu Cohen , Ido Kaminer , Avshalom C. Elitzur