Many-Body Approach to Electronic Excitations: Concepts and Applications

The many-body-theoretical basis and applications of theoretical spectroscopy of condensed matter, e.g. crystals, nanosystems, and molecules are unified in one advanced text for readers from graduate students to active researchers in the field. The theory is developed from first principles including...

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Tác giả chính:	Bechstedt, Friedhelm
Định dạng:	Sách
Ngôn ngữ:	English
Được phát hành:	Springer 2016
Những chủ đề:	Electron impact ionization Many-body problem Electronic excitation
Truy cập trực tuyến:	https://scholar.dlu.edu.vn/thuvienso/handle/DLU123456789/59846
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spelling	oai:scholar.dlu.edu.vn:DLU123456789-598462023-11-11T06:53:29Z Many-Body Approach to Electronic Excitations: Concepts and Applications Bechstedt, Friedhelm Electron impact ionization Many-body problem Electronic excitation The many-body-theoretical basis and applications of theoretical spectroscopy of condensed matter, e.g. crystals, nanosystems, and molecules are unified in one advanced text for readers from graduate students to active researchers in the field. The theory is developed from first principles including fully the electron-electron interaction and spin interactions. It is based on the many-body perturbation theory, a quantum-field-theoretical description, and Green's functions. The important expressions for ground states as well as electronic single-particle and pair excitations are explained. Based on single-particle and two-particle Green's functions, the Dyson and Bethe-Salpeter equations are derived. They are applied to calculate spectral and response functions. Important spectra are those which can be measured using photoemission/inverse photoemission, optical spectroscopy, and electron energy loss/inelastic X-ray spectroscopy. Important approximations are derived and discussed in the light of selected computational and experimental results. Some numerical implementations available in well-known computer codes are critically discussed. The book is divided into four parts: (i) In the first part the many-electron systems are described in the framework of the quantum-field theory. The electron spin and the spin-orbit interaction are taken into account. Sum rules are derived. (ii) The second part is mainly related to the ground state of electronic systems. The total energy is treated within the density functional theory. The most important approximations for exchange and correlation are delighted. (iii) The third part is essentially devoted to the description of charged electronic excitations such as electrons and holes. Central approximations as Hedin's GW and the T-matrix approximation are discussed.(iv) The fourth part is focused on response functions measured in optical and loss spectroscopies and neutral pair or collective excitations. 2016-03-16T03:29:12Z 2016-03-16T03:29:12Z 2015 Book 978-3-662-44593-8 978-3-662-44592-1 https://scholar.dlu.edu.vn/thuvienso/handle/DLU123456789/59846 en application/pdf Springer
institution	Thư viện Trường Đại học Đà Lạt
collection	Thư viện số
language	English
topic	Electron impact ionization Many-body problem Electronic excitation
spellingShingle	Electron impact ionization Many-body problem Electronic excitation Bechstedt, Friedhelm Many-Body Approach to Electronic Excitations: Concepts and Applications
description	The many-body-theoretical basis and applications of theoretical spectroscopy of condensed matter, e.g. crystals, nanosystems, and molecules are unified in one advanced text for readers from graduate students to active researchers in the field. The theory is developed from first principles including fully the electron-electron interaction and spin interactions. It is based on the many-body perturbation theory, a quantum-field-theoretical description, and Green's functions. The important expressions for ground states as well as electronic single-particle and pair excitations are explained. Based on single-particle and two-particle Green's functions, the Dyson and Bethe-Salpeter equations are derived. They are applied to calculate spectral and response functions. Important spectra are those which can be measured using photoemission/inverse photoemission, optical spectroscopy, and electron energy loss/inelastic X-ray spectroscopy. Important approximations are derived and discussed in the light of selected computational and experimental results. Some numerical implementations available in well-known computer codes are critically discussed. The book is divided into four parts: (i) In the first part the many-electron systems are described in the framework of the quantum-field theory. The electron spin and the spin-orbit interaction are taken into account. Sum rules are derived. (ii) The second part is mainly related to the ground state of electronic systems. The total energy is treated within the density functional theory. The most important approximations for exchange and correlation are delighted. (iii) The third part is essentially devoted to the description of charged electronic excitations such as electrons and holes. Central approximations as Hedin's GW and the T-matrix approximation are discussed.(iv) The fourth part is focused on response functions measured in optical and loss spectroscopies and neutral pair or collective excitations.
format	Book
author	Bechstedt, Friedhelm
author_facet	Bechstedt, Friedhelm
author_sort	Bechstedt, Friedhelm
title	Many-Body Approach to Electronic Excitations: Concepts and Applications
title_short	Many-Body Approach to Electronic Excitations: Concepts and Applications
title_full	Many-Body Approach to Electronic Excitations: Concepts and Applications
title_fullStr	Many-Body Approach to Electronic Excitations: Concepts and Applications
title_full_unstemmed	Many-Body Approach to Electronic Excitations: Concepts and Applications
title_sort	many-body approach to electronic excitations: concepts and applications
publisher	Springer
publishDate	2016
url	https://scholar.dlu.edu.vn/thuvienso/handle/DLU123456789/59846
_version_	1782537992809742336

Many-Body Approach to Electronic Excitations: Concepts and Applications

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