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The beta-ensemble with cubic potential can be used to study a quantum particle in a double-well potential with symmetry breaking term. The quantum mechanical perturbative energy arises from the ensemble free energy in a novel large N limit.…

高能物理 - 理论 · 物理学 2015-06-17 Daniel Krefl

A model for a chiral material in which both the permittivity and permeability are equal to zero is discussed. Such a material is referred by us as a ``chiral nihility". It is shown that this exotic material can be realized as a mixture of…

凝聚态物理 · 物理学 2007-05-23 Sergei Tretyakov , Igor Nefedov , Ari Sihvola , Stanislav Maslovski , Constantin Simovski

Scattering of electromagnetic (EM) waves by many small particles (bodies) embedded in a homogeneous medium is studied. Physical properties of the particles are described by their boundary impedances. The limiting equation is obtained for…

数学物理 · 物理学 2011-01-18 A. G. Ramm

A theory of electromagnetism is proposed that is based on the Fermi Lagrangian, which is symmetric under electromagnetic spin rotation. Its features are: - the four-potential is unambiguously determined by the inhomogeneous wave equation…

光学 · 物理学 2024-04-08 A. B. van Oosten

We present a mechanism that allows to describe any nonlinear theory of Electrodynamics as a consequence of the coupling of the electromagnetic field to gravity in the presence of a vacuum represented by the cosmological constant. We…

广义相对论与量子宇宙学 · 物理学 2017-06-21 M. Novello , C. E. L. Ducap

It is shown that unification of gravity and electromagnetism can be achieved using an affine non-symmetric connection $\Gamma^\lambda_{\mu\nu} \neq \Gamma^\lambda_{\nu\mu}$ and $\Gamma_\mu = \Gamma^\lambda_{[\mu\lambda]}\neq 0$.…

广义相对论与量子宇宙学 · 物理学 2018-08-31 Partha Ghose

Electron density and electron momentum density, while independently tractable experimentally, bear no direct connection without going through the many-electron wave function. However, invoking a variant of the constrained-search formulation…

原子物理 · 物理学 2009-11-11 M. K. Harbola , Rajendra R. Zope , Anjali Kshirsagar , Rajeev K. Pathak

We introduce the concept of emergent electric field. This is distinguished from the fundamental one in that the emergent electric field directly appears in observations through the Lorentz force, while the latter enters the phase space as…

广义相对论与量子宇宙学 · 物理学 2024-11-05 Erick I. Duque

We formulate a theory of spin dependent transport of an electronic circuit involving ferromagnetic elements with non-collinear magnetizations which is based on the conservation of spin and charge current. The theory considerably simplifies…

介观与纳米尺度物理 · 物理学 2009-10-31 Arne Brataas , Yu. V. Nazarov , Gerrit E. W. Bauer

The present understanding of nuclear electromagnetic properties including electromagnetic moments, form factors and transitions in nuclei with A $\le$ 10 is reviewed. Emphasis is on calculations based on nuclear Hamiltonians that include…

核理论 · 物理学 2016-04-20 Saori Pastore

There is merely a short note on the selected issues of neutrino electromagnetic properties with focus on effects of new physics. The meaning of "new physics" is twofold: 1) a massive neutrino have nonzero electromagnetic properties that can…

高能物理 - 唯象学 · 物理学 2018-01-29 Alexander Studenikin

We study the fluctuation electromagnetic interaction in a system of two rotating electrically neutral nonmagnetic particles with allowance for relativistic retardation effect. The particles are assumed to have different temperatures being…

介观与纳米尺度物理 · 物理学 2012-10-26 A. A. Kyasov , G. V. Dedkov

This paper aims to present an elaborate view on the motivation and realization of the idea to extend Maxwell's electrodynamics to Extended Electrodynamics in a reasonable and appropriate way in order to make it possible to describe…

patt-sol · 物理学 2008-02-03 S. Donev , M. Tashkova

We construct a generic class of models for complex scalar fields -- minimally coupled to gravity and electromagnetism -- with the property that their energy-momentum tensor and the electric current vanish for certain massive configurations.…

高能物理 - 理论 · 物理学 2023-03-24 Cristian Quinzacara , Paola Meza , Almeira Sampson , Mauricio Valenzuela

We present a model which provides a plausible explanation of the effect of zero-resistance and zero-conductance states in two-dimensional electron systems subjected to a magnetic field and irradiated with microwaves observed in a number of…

介观与纳米尺度物理 · 物理学 2009-11-10 V. Ryzhii , A. Chaplik , R. Suris

It is first argued that radiation by a uniformly accelerated charge in flat space-time indicates the need for a unified geometric theory of gravity and electromagnetism. Such a theory, based on a metric-affine $U_4$ manifold, is constructed…

综合物理 · 物理学 2018-08-30 Partha Ghose

In nonlinear electrodynamics, by implementing the causality principle as the requirement that the group velocity of elementary excitations over a background field should not exceed unity, and the unitarity principle as the requirement that…

高能物理 - 理论 · 物理学 2009-11-04 Anatoly E. Shabad , Vladimir V. Usov

By resolving the Riemann curvature relative to a unit timelike vector into electric and magnetic parts, we consider duality relations analogous to the electromagnetic theory. It turns out that the duality symmetry of the Einstein action…

广义相对论与量子宇宙学 · 物理学 2015-06-25 Naresh Dadhich

The electron motion in a strong perpendicular magnetic field close to the impenetrable stripe is considered by making use of the singular integral equation technique. The energy spectrum is calculated and compared with the energy spectrum…

介观与纳米尺度物理 · 物理学 2009-11-07 A. Matulis , T. Pyragiene

Nullification of the Einstein tensor curvature for the elementary material space with active gravitational field (radial source) and passive field distribution of its inertial particle (radial sink) maintains the conceptual equivalence of…

综合物理 · 物理学 2010-11-09 I. E. Bulyzhenkov