By Igor N. Toptygin

Smooth electrodynamics in numerous media is a large department of electrodynamics which mixes the precise conception of electromagnetic fields within the presence of electrical fees and currents with statistical description of those fields in gases, plasmas, beverages and solids; dielectrics, conductors and superconductors. it's wide-spread in physics and in different typical sciences (such as astrophysics and geophysics, biophysics, ecology and evolution of terrestrial climate), and in numerous technological purposes (radio electronics, know-how of synthetic fabrics, laser-based technological approaches, propagation of bunches of fees debris, linear and nonlinear electromagnetic waves, etc.). Electrodynamics of topic is predicated at the specific primary (microscopic) electrodynamics yet is supplemented with particular descriptions of electromagnetic fields in numerous media utilizing the tools of statistical physics, quantum mechanics, physics of condensed subject (including thought of superconductivity), actual kinetics and plasma physics.

This ebook offers in a single special quantity a scientific description of the most electrodynamic phenomena in matter:

- a wide number of theoretical ways utilized in describing a variety of media

- quite a few vital manifestations of electrodynamics in topic (magnetic fabrics, superconductivity, magnetic hydrodynamics, holography, radiation in crystals, solitons, etc.)

- an outline of the functions utilized in diverse branches of physics and lots of different fields of normal sciences

- Describes the full complexity of electrodynamics in subject together with fabric at assorted degrees.

- orientated in the direction of 3-4 12 months bachelors, masters, and PhD scholars, in addition to lectures, and engineers and scientists operating within the field.

- The reader will want a simple wisdom of basic physics, better arithmetic, classical mechanics and microscopic (fundamental) electrodynamics on the general college level

- All examples and difficulties are defined intimately within the textual content to assist the reader the best way to resolve problems

- complex difficulties are marked with one asterisk, and the main complicated ones with asterisks. a few difficulties are advised to be solved first, and are are marked via crammed dots; they're extra common and significant or include effects utilized in different problems.

**Read or Download Electromagnetic Phenomena in Matter: Statistical and Quantum Approaches PDF**

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**Additional info for Electromagnetic Phenomena in Matter: Statistical and Quantum Approaches**

**Sample text**

Calculate the magnetic polarization vector M and the paramagnetic susceptibility of the gas due to the orientation of atomic magnetic moments. 15? 17⋆ Carry out a quantum mechanical calculation of the magnetization and the paramagnetic susceptibility of a statistically equilibrated rareﬁed atomic gas placed in a weak magnetic ﬁeld. The quantum mechanical operator of the total magnetic moment of an individual atom has the form (cf. 3 Polarization of Media in a Constant Field an electron shell of the atom.

1 Consider an arbitrary volume V inside a dielectric, which is enclosed by surface S, and calculate the electric charge qint = ∫V ????int dV inside this volume. 2). All remaining dipoles are either wholly inside or outside the volume V and make no contribution to the total charge. A surface element dS meets Nl⋅dS dipoles on average. Their charge enclosed by this surface element is dqint = −eNl⋅dS = −P⋅dS. 16). 2 To calculation of the density of bound charges in a dielectric. 3 To calculation of magnetization current.

Solution. For the proof, let us assume the opposite (that the statement is incorrect). Let ????1 and ????2 be two diﬀerent potentials, which satisfy the equation ∇???? ???????????? ∇???? ????1,2 = −4????????ext (1) and the boundary conditions (2) ????1,2 |r→∞ → 0, ????1,2 |Si = ????i , or (3) ????1,2 |r→∞ → 0, ????1,2 |Si = const, ∮Si ???????????? ∇???? ???? dS???? = −4????qi . 1 Basic Concepts and Methods of Electrostatics We apply the Gauss–Ostrogradskii theorem to the vector a???? = ???????????????? ∇???? ????, where ???? = ????1 − ????2 : (4) ∫ ????∇???? ???????????? ∇???? ???? dV + ∫ ???????????? ∇???? ????∇???? ???? dV = ∮S ???????????????? ∇???? ???? dS???? .