Atoms in Plasmas [Paperback]

A study of radiative-collisional phenomena in neutral and ionized gases, focusing on a perturbed atom , i.e an atom under the influence of different perturbations in plasmas, namely by electrical and magnetic fields. The treatment covers fundamental aspects of modern physics, such as atomic quantum mechanics and quantum optics, radiation and collisional processes in plasmas and gases, nonlinear laser spectroscopy, and plasma diagnostics.Atoms in Plasmas is concerned with radiative-collisional phenomena in neutral and ionized gases. Central to the studies is a perturbed atom that is an atom under the influence of different perturbations in plasmas, namely by electrical and magnetic fields, fields of plasma oscillations, laser and Planck-radiation fields, collisions with excited particles, stochastic accelerations, etc. The treatment covers fundamental aspects of modern physics, such as atomic quantum mechanics and quantum optics, radiation and collisional processes in plasmas and gases, nonlinear laser spectroscopy, plasma diagnostics, etc.1. Introduction. General Problems of Description of Atomic Spectra in Plasmas.- 1.1 Atomic Physics and Plasma Physics. Quasiclassical Methods for Atomic Processes.- 1.2 General Problems of Atomic-State Mixing in a Plasma Medium. Density Matrix Method.- 2. Classical Motion in an Atomic Potential. Atomic Structure.- 2.1 Classical Radiation Spectra in a Coulomb Field. Peculiarities of the High-Frequency Domain. Kramers Electrodynamics.- 2.2 Symmetry Properties of the Coulomb Field.- 2.3 Nonhydrogenic Atoms. Allowed and Forbidden Transitions. Properties of Multicharged Ion Spectra.- 2.3.1 Nonhydrogenic Atomic Spectra Structure. Allowed and Forbidden Transitions.- 2.3.2 Properties of Multicharged Ions (MCI) Spectra.- 2.4 Auto-ionization States. Stationary (Fano) and Time-Dependent (Kompaneets) Descriptions.- 2.4.1 Auto-ionization States.- 2.4.2 The Interaction of Discrete States with a Continuum. Fano and Kompaneel“+