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The space of the solutions of the differential equations resulting from considering matter fluids of scalar field type or perfect fluid in Einstein-aether theory is analyzed. The Einstein-aether theory of gravity consists of General…

广义相对论与量子宇宙学 · 物理学 2020-06-16 Alfredo Millano

Maxwell's equations and the Lorentz force density are expressed using an alternative simultaneity gauge. As a result, they describe electrodynamics for an observer travelling with a constant velocity through an isotropic medium. If desired,…

物理学史与哲学 · 物理学 2013-06-21 Benjamin Nasmith

We consider an elastic-plastic medium whose motion equations are isomorphic to Maxwell's equations. Electrical charges are modeled by pressure centers of the medium. The electric interaction is shown to be concerned with the conservation…

综合物理 · 物理学 2009-10-28 Valery P. Dmitriyev

Classical Electrodynamics is not a consistent theory because of its field inadequate behaviour in the vicinity of their sources. Its problems with the electron equation of motion and with non-integrable singularity of the electron self…

高能物理 - 理论 · 物理学 2008-02-03 Manoelito M. de Souza

We study a generally covariant model in which local Lorentz invariance is broken "spontaneously" by a dynamical unit timelike vector field $u^a$---the "aether". Such a model makes it possible to study the gravitational and cosmological…

广义相对论与量子宇宙学 · 物理学 2009-10-31 Ted Jacobson , David Mattingly

We study the classical electrodynamics of extended bodies. Currently, there is no self-consistent dynamical theory of such bodies in the literature. Electromagnetic energy-momentum is not conserved in the presence of charge and some…

经典物理 · 物理学 2021-09-14 P. D. Flammer

We consider a Lorentz-violating theory of gravity where the aether vector is taken to be nondynamical. This "ponderable aether theory" is almost the same as Einstein-aether theory (where the aether vector is dynamical), but involves…

广义相对论与量子宇宙学 · 物理学 2015-08-19 Antony J. Speranza

A cornerstone of physics, Maxwell's theory of electromagnetism, apparently contains a fatal flaw. The standard expressions for the electromagnetic field energy and self-mass of an electron of finite extension do not obey Einstein's famous…

经典物理 · 物理学 2023-02-01 Murat Khokonov , Jens Ulrik Andersen

The self-force problem of classical electrodynamics has two closely linked facets: The ill defined dynamics of a point charge due to the divergent self field at the position of the charge, and the divergence of formally conserved…

综合物理 · 物理学 2013-12-20 Yehonatan Knoll

Local Lorentz invariance violation can be realized by introducing extra tensor fields in the action that couple to matter. If the Lorentz violation is rotationally invariant in some frame, then it is characterized by an ``aether'', i.e. a…

广义相对论与量子宇宙学 · 物理学 2008-11-26 T. Jacobson , D. Mattingly

We study supersymmetric extension of the Einstein-aether gravitational model where local Lorentz invariance is broken down to the subgroup of spatial rotations by a vacuum expectation value of a timelike vector field called aether.…

高能物理 - 理论 · 物理学 2021-10-26 Arthur Marakulin , Sergey Sibiryakov

We extend the Einstein-aether theory to include the Maxwell field in a nontrivial manner by taking into account its interaction with the time-like unit vector field characterizing the aether. We also include a generic matter term. We…

广义相对论与量子宇宙学 · 物理学 2014-08-27 Alexander B. Balakin , José P. S. Lemos

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

The Maxwell-Lorentz theory of electrodynamics cannot readily be applied to a system of point charges: the electromagnetic field is not well-defined at the position of a point charge, an energy conservation argument is not obvious, an…

经典物理 · 物理学 2020-03-24 Mischa Moerkamp

Some mathematical inconsistencies in the conventional form of Maxwell's equations extended by Lorentz for a single charge system are discussed. To surmount these in framework of Maxwellian theory, a novel convection displacement current is…

高能物理 - 理论 · 物理学 2015-06-26 Andrew E. Chubykalo , Roman Smirnov-Rueda

We have derived energy conservation equations from the quaternionic Newton's law that is compatible with Lorentz transformation. This Newton's law yields directly the Euler equation and other equations governing the fluid motion. With this…

综合物理 · 物理学 2011-08-11 Arbab I. Arbab

The issue of a self-consistent solution of Maxwell-Einstein equations achieves a very simple form when all quantum effects are neglected but a weak vacuum polarization due to an external magnetic field is taken into account. From a…

广义相对论与量子宇宙学 · 物理学 2007-05-23 R. Klippert , V. A. De Lorenci , M. Novello , J. M. Salim

In the light of recent experimental and theoretical data, we go back to the studies tackled in previous publications [1] and develop some of their consequences. Some of their main aspects will be studied in further detail. Yet this text…

综合物理 · 物理学 2008-03-27 Joseph Levy

We speculate that the universe may be filled with a visco-elastic continuum which may be called aether. Thus, the Maxwell's equations in vacuum are derived by methods of continuum mechanics based on a continuum mechanical model of vacuum…

综合物理 · 物理学 2007-05-23 Xiao-Song Wang

Dynamics of inelastic gases are studied within the framework of random collision processes. The corresponding Boltzmann equation with uniform collision rates is solved analytically for gases, impurities, and mixtures. Generally, the energy…

统计力学 · 物理学 2007-05-23 E. Ben-Naim , P. L. Krapivsky
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