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Many-body methods for atoms, molecules and clusters

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Many-body methods for atoms, molecules and clusters/ by Jochen Schirmer.
Author:	Schirmer, Jochen.
Published:	Cham :Springer International Publishing : : 2018.,
Description:	xii, 332 p. :ill., digital ; : 24 cm.;
Contained By:	Springer eBooks
Subject:	Many-body problem. -
Online resource:	https://doi.org/10.1007/978-3-319-93602-4
ISBN:	9783319936024

Many-body methods for atoms, molecules and clusters
Schirmer, Jochen.

Many-body methods for atoms, molecules and clusters[electronic resource] /by Jochen Schirmer. - Cham :Springer International Publishing :2018. - xii, 332 p. :ill., digital ;24 cm. - Lecture notes in chemistry,v.940342-4901 ;. - Lecture notes in chemistry ;v.78..

Part I Many-Electron Systems and the Electron Propagator -- Systems of identical particles -- Second quantization -- One-particle Green's function -- Part II Formalism of Diagrammatic Perturbation Theory -- Perturbation theory for the electron propagator -- Introducing diagrams -- Feynman diagrams -- Time-ordered or Goldstone diagrams -- Part III Approximation and Computational Schemes -- Self-energy and the Dyson equation -- Algebraic-diagrammatic construction (ADC) -- Direct ADC procedure for the electron propagator -- Intermediate-state representation (ISR) -- Order relations and separability -- Part IV N-Electronic excitations -- Polarization propagator -- ADC and ISR approaches to the polarization propagator -- Random-phase approximation (RPA) -- Part V. A look at related methods -- Algebraic propagator methods -- Coupled-cluster methods for generalized excitations -- Appendix.

This book provides an introduction to many-body methods for applications in quantum chemistry. These methods, originating in field-theory, offer an alternative to conventional quantum-chemical approaches to the treatment of the many-electron problem in molecules. Starting with a general introduction to the atomic and molecular many-electron problem, the book then develops a stringent formalism of field-theoretical many-body theory, culminating in the diagrammatic perturbation expansions of many-body Green's functions or propagators in terms of Feynman diagrams. It also introduces and analyzes practical computational methods, such as the field-tested algebraic-diagrammatic construction (ADC) schemes. The ADC concept can also be established via a wave-function based procedure, referred to as intermediate state representation (ISR), which bridges the gap between propagator and wave-function formulations. Based on the current rapid increase in computer power and the development of efficient computational methods, quantum chemistry has emerged as a potent theoretical tool for treating ever-larger molecules and problems of chemical and physical interest. Offering an introduction to many-body methods, this book appeals to advanced students interested in an alternative approach to the many-electron problem in molecules, and is suitable for any courses dealing with computational methods in quantum chemistry.

ISBN: 9783319936024

Standard No.: 10.1007/978-3-319-93602-4doiSubjects--Topical Terms:

683073
Many-body problem.

LC Class. No.: QC174.17.P7 / S357 2018

Dewey Class. No.: 530.144

Many-body methods for atoms, molecules and clusters
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505 0 $a Part I Many-Electron Systems and the Electron Propagator -- Systems of identical particles -- Second quantization -- One-particle Green's function -- Part II Formalism of Diagrammatic Perturbation Theory -- Perturbation theory for the electron propagator -- Introducing diagrams -- Feynman diagrams -- Time-ordered or Goldstone diagrams -- Part III Approximation and Computational Schemes -- Self-energy and the Dyson equation -- Algebraic-diagrammatic construction (ADC) -- Direct ADC procedure for the electron propagator -- Intermediate-state representation (ISR) -- Order relations and separability -- Part IV N-Electronic excitations -- Polarization propagator -- ADC and ISR approaches to the polarization propagator -- Random-phase approximation (RPA) -- Part V. A look at related methods -- Algebraic propagator methods -- Coupled-cluster methods for generalized excitations -- Appendix.
520 $a This book provides an introduction to many-body methods for applications in quantum chemistry. These methods, originating in field-theory, offer an alternative to conventional quantum-chemical approaches to the treatment of the many-electron problem in molecules. Starting with a general introduction to the atomic and molecular many-electron problem, the book then develops a stringent formalism of field-theoretical many-body theory, culminating in the diagrammatic perturbation expansions of many-body Green's functions or propagators in terms of Feynman diagrams. It also introduces and analyzes practical computational methods, such as the field-tested algebraic-diagrammatic construction (ADC) schemes. The ADC concept can also be established via a wave-function based procedure, referred to as intermediate state representation (ISR), which bridges the gap between propagator and wave-function formulations. Based on the current rapid increase in computer power and the development of efficient computational methods, quantum chemistry has emerged as a potent theoretical tool for treating ever-larger molecules and problems of chemical and physical interest. Offering an introduction to many-body methods, this book appeals to advanced students interested in an alternative approach to the many-electron problem in molecules, and is suitable for any courses dealing with computational methods in quantum chemistry.
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