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The classical theory of electromagnetism is entirely revised in this book by proposing a variant of Maxwell equations that allows solitonic solutions (photons). The Lagrangian is the standard one, but it is minimized on a constrained space that enforces the wave packets to follow the rules of geometrical optics. Exact solutions are explicitly shown; this opens a completely new perspective for the study of light wave phenomena. In the framework of general relativity, the equations are written in covariant form. A coupling with the metric is obtained through the Einstein equation, whose solutions are computed exactly in a lot of original situations. Finally, the explicit construction of elementary particles, consisting of rotating photons, is indicated. The results agree qualitatively and quantitatively with what it is actually observed. This opens the path to an understanding of the structure of matter and its properties, also aimed to provide a causal explanation to quantum phenomena.
Motivated by a revision of the classical equations of electromagnetism that allow for the inclusion of solitary waves in the solution space, the material collected in this book examines the consequences of adopting the modified model in the description of atomic structures. The possibility of handling 'photons' in a deterministic way indeed gives a chance to review the foundations of quantum physics. Atoms and molecules are described as aggregations of nuclei and electrons joined through organized photon layers resonating at various frequencies, explaining how matter can absorb or emit light quanta. Some established viewpoints are subverted, offering an alternative scenario. The analysis seeks to provide an answer to many technical problems in physical chemistry and, at the same time, to raise epistemological questions.
An understanding of the quantum mechanical nature of magnetism has led to the development of new magnetic materials which are used as permanent magnets, sensors, and information storage. Behind these practical applications lie a range of fundamental ideas, including symmetry breaking, order parameters, excitations, frustration, and reduced dimensionality. This superb new textbook presents a logical account of these ideas, staring from basic concepts in electromagnetsim and quantum mechanics. It outlines the origin of magnetic moments in atoms and how these moments can be affected by their local environment inside a crystal. The different types of interactions which can be present between magnetic moments are described. The final chapters of the book are devoted to the magnetic properties of metals, and to the complex behaviour which can occur when competing magnetic interactions are present and/or the system has a reduced dimensionality. Throughout the text, the theorectical principles are applied to real systems. There is substantial discussion of experimental techniques and current reserach topics. The book is copiously illustrated and contains detailed appendices which cover the fundamental principles.
High-level, explicit treatment of the principle of general covariance as applied to electromagnetics examines the natural invariance of the Maxwell equations, general properties of the medium, nonuniformity, anisotropy and general coordinates in three-space, reciprocity and nonreciprocity, and matter-free space with a gravitational field. 1962 edition.
Light and Matter: Electromagnetism, Optics, Spectroscopy and Lasers provides comprehensive coverage of the interaction of light and matter and resulting outcomes. Covering theory, practical consequencies and applications, this modern text serves to bridge the gap between electromagnetism, optics, spectroscopy and lasers. The book introduces the reader to the nature of light, explanes key procedures which occur as light travels through matter and delves into the effects and applications, exploring spectroscopy, lasers, nonlinear optics, fiber optics, quantum optics and light scattering. Extensive examples ensure clarity of meaning while the dynamic structure allows sections to be studies independently of one another. covers both fundamentals and applications features numerous examples dynamic structure allows sections to be studied independently of one another in depth coverage of modern topics. This is an essential text for students of electromagnetism and optics, optoelectronics and lasers, quantum electronics spectroscopy, as well as being an invaluable reference for researches.
This book provides the reader with basic tools to solve problems of electromagnetism in their natural functional frameworks thanks to modern mathematical methods: integral surface methods, and also semigroups, variational methods, etc., well adapted to a numerical approach.As examples of applications of these tools and concepts, we solve several fundamental problems of electromagnetism, stationary or time-dependent: scattering of an incident wave by an obstacle, bounded or not, by gratings; wave propagation in a waveguide, with junctions and cascades. We hope that mathematical notions will allow a better understanding of modelization in electromagnetism and emphasize the essential features related to the geometry and nature of materials.
Basic Electromagnetic Theory is designed as a concise introduction to electromagnetic field theory emphasizing the physical foundations of the subject. It is aimed at both undergraduates and interested laypersons. It has been based on the author's experience both as a former field theorist (working on quantum electrodynamics) and currently as an applied optical physicist. As such, it covers much material from the standard university syllabus. It also develops a number of themes in greater detail, so as to cover a number of non-standard topics that provide a fuller understanding of the subject. A key aspect to the book is the macroscopic approach to the subject from the outset. Most readers will have some familiarity with the standard mathematics employed, but a review chapter is provided at the beginning to help give some guidance on these topics as they are used throughout the book. Features: •Designed as a concise introduction to electromagnetic field theory emphasizing the physical foundations of the subject •Covers a number of non-standard topics that provide a fuller understanding of the subject
This excellent text covers a year's course. Topics include vectors D and H inside matter, conservation laws for energy, momentum, invariance, form invariance, covariance in special relativity, and more.