Relativistic Quantum Theory of Atoms and Molecules, w. CD-ROM
(Sprache: Englisch)
This book is intended for physicists and chemists who need to understand the theory of atomic and molecular structure and processes, and who wish to apply the theory to practical problems. As far as practicable, the book provides a self-contained account of...
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Klappentext zu „Relativistic Quantum Theory of Atoms and Molecules, w. CD-ROM “
This book is intended for physicists and chemists who need to understand the theory of atomic and molecular structure and processes, and who wish to apply the theory to practical problems. As far as practicable, the book provides a self-contained account of the theory of relativistic atomic and molecular structure, based on the accepted formalism of bound-state Quantum Electrodynamics. The author was elected a Fellow of the Royal Society of London in 1992.
Relativistic quantum electrodynamics, which describes the electromagnetic interactions of electrons and atomic nuclei, provides the basis for modeling the electronic structure of atoms, molecules and solids and of their interactions with photons and other projectiles. The theory underlying the widely used GRASP relativistic atomic structure program, the DARC electron-atom scattering code and the new BERTHA relativistic molecular structure program is presented in depth, together with computational aspects relevant to practical calculations. Along with an understanding of the physics and mathematics, the reader will gain some idea of how to use these programs to predict energy levels, ionization energies, electron affinities, transition probabilities, hyperfine effects and other properties of atoms and molecules.
Intended for Physicists and Chemists who need to understand the theory of atomic and molecular structure and processes, and who wish to apply the theory to practical problems. As far as practicable, the book will provide a self-contained account of the theory of relativistic atomic and molecular structure, based on the accepted formalism of bound-state Quantum Electrodynamics. The theory will be based securely on rigorous mathematical and numerical analysis. Those more interested in applications than in understanding the models in depth will be able to skip much of the mathematical material. The algorithms used in several software packages - for atomic structures, for electron-atom scattering and photoionisation and for relativistic atomic and molecular structures - will be presented, together with an outline of the scope and use of each. The software packages themselves will be included on a CD. Many applications of relativistic atomic and molecular structure theory use model potentials, self-consistent fields, or density- functional methods, supplemented by some form of many-body perturbation theory or coupled-cluster method for improved accuracy. The book will discuss a range of applications to both low-Z and high-Z materials by way of illustration to appeal to as wide an audience as practicable. The theory is also essential for high-precision calculations of QED and electron correlation in atoms. The current activity in this area means that the topic should not be neglected, although some of it is too specialized to be given a full discussion.
Intended for Physicists and Chemists who need to understand the theory of atomic and molecular structure and processes, and who wish to apply the theory to practical problems. As far as practicable, the book will provide a self-contained account of the theory of relativistic atomic and molecular structure, based on the accepted formalism of bound-state Quantum Electrodynamics. The theory will be based securely on rigorous mathematical and numerical analysis. Those more interested in applications than in understanding the models in depth will be able to skip much of the mathematical material. The algorithms used in several software packages - for atomic structures, for electron-atom scattering and photoionisation and for relativistic atomic and molecular structures - will be presented, together with an outline of the scope and use of each. The software packages themselves will be included on a CD. Many applications of relativistic atomic and molecular structure theory use model potentials, self-consistent fields, or density- functional methods, supplemented by some form of many-body perturbation theory or coupled-cluster method for improved accuracy. The book will discuss a range of applications to both low-Z and high-Z materials by way of illustration to appeal to as wide an audience as practicable. The theory is also essential for high-precision calculations of QED and electron correlation in atoms. The current activity in this area means that the topic should not be neglected, although some of it is too specialized to be given a full discussion.
Inhaltsverzeichnis zu „Relativistic Quantum Theory of Atoms and Molecules, w. CD-ROM “
Relativity in atomic and molecular physics.- Relativistic wave equations for free particles.- The Dirac Equation.- Quantum electrodynamics.- Approximation of Dirac wavefunctions.- Complex atoms.- Computation of atomic structures.- Computation of atomic properties.- Continuum processes in many-electron atoms.- Molecular structure methods.- Relativistic calculation of molecular properties.- References.- Index.
Autoren-Porträt von Ian P. Grant
Professor Grant first became aware of the need to develop a relativistic theory of atomic and molecular structure some 50 years ago in connection with X-ray absorption by heavy metals. In a 1961 paper, he showed that the Dirac-Hartree-Fock equations for atoms could be written in a simple form which has been used in all subsequent atomic calculations. This early work was generalized to permit more accurate multi-configurational calculations in the next two decades, implemented in the widely used GRASP code for relativistic modeling of electronic wavefunctions, energy levels and radiative transition probabilities of spectral lines. The DARC code, an extension of GRASP which is designed to calculate cross sections for atom/ion collisions with low-energy electrons or photons, was developed mainly in the 1980s and is now becoming more relevant for applications involving target atoms of higher atomic number. The BERTHA code is the first relativistic molecular structure code designed to take advantage of the internal structure of Dirac four-component spinors; its speed and accuracy are now beginning to be appreciated and utilized effectively by quantum chemists. The book is designed for all those who would like to know more about the mathematics and physics of relativistic atomic and molecular theory and who wish to use the computational machinery now available to solve problems in atomic and molecular physics and their applications.Professor Grant was elected a Fellow of the Royal Society of London in 1992.
Bibliographische Angaben
- Autor: Ian P. Grant
- 2006, 800 Seiten, 46 Schwarz-Weiss-Abbildungen, Masse: 15,9 x 24,1 cm, Gebunden, Englisch
- Verlag: Springer
- ISBN-10: 0387346716
- ISBN-13: 9780387346717
Sprache:
Englisch
Rezension zu „Relativistic Quantum Theory of Atoms and Molecules, w. CD-ROM “
From the reviews:"Relativistic Quantum Theory of Atoms and Molecules is a book that should be on the desk of every atomic-physics student and research scientist. Written by a master of the field, it contains a wealth of information about relativistic atomic and molecular structures." (Walter Johnson, Physics Today, January, 2008)
"In the text, the presentation is usually well balanced, with words and formulas in an appropriate ratio; explanations are frequently supplemented by some sentences that aid the readers' orientation and motivation. Although the book is particularly tailored towards applications within atomic and molecular theory, several chapters may also be useful for readers whose interests embrace more general aspects of relativistic quantum mechanics. ... In summary, Grant's monograph is more than just a 'valuable addition' to the literature on relativistic atomic and molecular theory." (H. Hogreve, Mathematical Reviews, Issue 2012 c)
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