In the spring of 1906, Nobel laureate H.A. Lorentz gave a famous series of lectures at Columbia University. Gathered in one volume and published as The Theory of Electrons in 1909, these talks are still widely read and admired today, more than 100 years later. This collection includes lectures on: . the theory of free electrons . the emission and absorption of heat . the theory of the Zeeman-effect . the propagation of light in a body composed of molecules . the theory of the inverse Zeeman-effect . the optical phenomena in moving bodies Extensive notes, complete with mathematical equations, complement the text, and an extensive index will aid the reader. Dutch physicist HENDRIK ANTOON LORENTZ (1853-1928) shared the Nobel Prize in physics with Pieter Zeeman in 1902. His publications include The Einstein Theory of Relativity: A Concise Statement (1920), Lectures on Theoretical Physics (1927), and Problems of Modern Physics (1927).

Electron theory of metals textbook for advanced undergraduate students of condensed-matter physics and related disciplines.

This is a classic text of its time in condensed matter physics.

techniques, and raises new issues of physical interpretation as well as possibilities for deepening the theory. (3) Barut contributes a comprehensive review of his own ambitious program in electron theory and quantum electrodynamics. Barut's work is rich with ingenious ideas, and the interest it provokes among other theorists can be seen in the cri tique by Grandy. Cooperstock takes a much different approach to nonlinear field-electron coupling which leads him to conclusions about the size of the electron. (4) Capri and Bandrauk work within the standard framework of quantum electrodynamics. Bandrauk presents a valuable review of his theoretical approach to the striking new photoelectric phenomena in high intensity laser experiments. (5) Jung proposes a theory to merge the ideas of free-free transitions and of scattering chaos, which is becoming increasingly important in the theoretical analysis of nonlinear optical phenomena. For the last half century the properties of electrons have been probed primarily by scattering experiments at ever higher energies. Recently, however, two powerful new experimental techniques have emerged capable of giving alternative experimental views of the electron. We refer to (1) the confinement of single electrons for long term study, and (2) the interaction of electrons with high intensity laser fields. Articles by outstanding practitioners of both techniques are included in Part II of these Proceedings. The precision experiments on trapped electrons by the Washington group quoted above have already led to a Nobel prize for the most accurate measurements of the electron magnetic moment.

Modern electronic devices and novel materials often derive their extraordinary properties from the intriguing, complex behavior of large numbers of electrons forming what is known as an electron liquid. This book provides an in-depth introduction to the physics of the interacting electron liquid in a broad variety of systems, including metals, semiconductors, artificial nano-structures, atoms and molecules. One, two and three dimensional systems are treated separately and in parallel. Different phases of the electron liquid, from the Landau Fermi liquid to the Wigner crystal, from the Luttinger liquid to the quantum Hall liquid are extensively discussed. Both static and time-dependent density functional theory are presented in detail. Although the emphasis is on the development of the basic physical ideas and on a critical discussion of the most useful approximations, the formal derivation of the results is highly detailed and based on the simplest, most direct methods.