Methods Of Electronic Structure Calculations
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Methods Of Electronic Structure Calculations
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Author : Michael Springborg
language : en
Publisher: Wiley
Release Date : 2000-07-26
Methods Of Electronic Structure Calculations written by Michael Springborg and has been published by Wiley this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000-07-26 with Science categories.
Electronic-structure calculations of the properties of specific materials have become increasingly important over the last 30 years. Although several books on the subject have been published, it is rare to find one that covers in detail both the traditional quantum chemistry and the solid-state physics methods of electronic-structure calculations. This title bridges that gap, focusing equally on both types of method, including density-functional and Hartree-Fock-based approaches. The book is aimed at final-year undergraduate and postgraduate students of both chemistry and of physics. It describes in detail the fundamentals behind the various methods that are used in calculating electronic properties of materials, and that to some extent are commercially available. It should also be of interest to professional scientists working in related theoretical or experimental fields.
Semiempirical Methods Of Electronic Structure Calculation
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Author : Gerald Segal
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Semiempirical Methods Of Electronic Structure Calculation written by Gerald Segal and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
If one reflects upon the range of chemical problems accessible to the current quantum theoretical methods for calculations on the electronic structure of molecules, one is immediately struck by the rather narrow limits imposed by economic and numerical feasibility. Most of the systems with which experimental photochemists actually work are beyond the grasp of ab initio methods due to the presence of a few reasonably large aromatic ring systems. Potential energy surfaces for all but the smallest molecules are extremely expensive to produce, even over a restricted group of the possible degrees of freedom, and molecules containing the higher elements of the periodic table remain virtually untouched due to the large numbers of electrons involved. Almost the entire class of molecules of real biological interest is simply out of the question. In general, the theoretician is reduced to model systems of variable appositeness in most of these fields. The fundamental problem, from a basic computational point of view, is that large molecules require large numbers of basis functions, whether Slater type orbitals or Gaussian functions suitably contracted, to provide even a modestly accurate description of the molecular electronic environment. This leads to the necessity of dealing with very large matrices and numbers of integrals within the Hartree-Fock approximation and quickly becomes both numerically difficult and uneconomic.
Lectures On Methods Of Electronic Structure Calculations Proceedings Of The Miniworkshop On Methods Of Electronic Structure Calculations And Working Group On Disordered Alloys
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Author : Ole Krogh Andersen
language : en
Publisher: World Scientific
Release Date : 1995-02-23
Lectures On Methods Of Electronic Structure Calculations Proceedings Of The Miniworkshop On Methods Of Electronic Structure Calculations And Working Group On Disordered Alloys written by Ole Krogh Andersen and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995-02-23 with Science categories.
Developments in the density functional theory and the methods of electronic structure calculations have made it possible to carry out ab-initio studies of a variety of materials efficiently and at a predictable level. This book covers many of those state-of-the-art developments and their applications to ordered and disordered materials, surfaces and interfaces and clusters, etc.
Electronic Structure Calculations For Solids And Molecules
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Author : Jorge Kohanoff
language : en
Publisher: Cambridge University Press
Release Date : 2006-06-29
Electronic Structure Calculations For Solids And Molecules written by Jorge Kohanoff and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-06-29 with Science categories.
Electronic structure problems are studied in condensed matter physics and theoretical chemistry to provide important insights into the properties of matter. This 2006 graduate textbook describes the main theoretical approaches and computational techniques, from the simplest approximations to the most sophisticated methods. It starts with a detailed description of the various theoretical approaches to calculating the electronic structure of solids and molecules, including density-functional theory and chemical methods based on Hartree-Fock theory. The basic approximations are thoroughly discussed, and an in-depth overview of recent advances and alternative approaches in DFT is given. The second part discusses the different practical methods used to solve the electronic structure problem computationally, for both DFT and Hartree-Fock approaches. Adopting a unique and open approach, this textbook is aimed at graduate students in physics and chemistry, and is intended to improve communication between these communities. It also serves as a reference for researchers entering the field.
Semiempirical Methods Of Electronic Structure Calculation
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Author : Gerald Segal
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Semiempirical Methods Of Electronic Structure Calculation written by Gerald Segal and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
If one reflects upon the range of chemical problems accessible to the current quantum theoretical methods for calculations on the electronic structure of molecules, one is immediately struck by the rather narrow limits imposed by economic and numerical feasibility. Most of the systems with which experimental photochemists actually work are beyond the grasp of ab initio methods due to the presence of a few reasonably large aromatic ring systems. Potential energy surfaces for all but the smallest molecules are extremely expensive to produce, even over a restricted group of the possible degrees of freedom, and molecules containing the higher elements of the periodic table remain virtually untouched due to the large numbers of electrons involved. Almost the entire class of molecules of real biological interest is simply out of the question. In general, the theoretician is reduced to model systems of variable appositeness in most of these fields. The fundamental problem, from a basic computational point of view, is that large molecules require large numbers of basis functions, whether Slater type orbitals or Gaussian functions suitably contracted, to provide even a modestly accurate description of the molecular electronic environment. This leads to the necessity of dealing with very large matrices and numbers of integrals within the Hartree-Fock approximation and quickly becomes both numerically difficult and uneconomic.
Semiempirical Methods Of Electronic Structure Calculation
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Author : Gerald A. Segal
language : en
Publisher:
Release Date :
Semiempirical Methods Of Electronic Structure Calculation written by Gerald A. Segal and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on with Molecular orbitals categories.
Methods Of Electronic Structure Theory
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Author : Henry F. Schaefer
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-06-29
Methods Of Electronic Structure Theory written by Henry F. Schaefer and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-06-29 with Science categories.
These two volumes deal with the quantum theory of the electronic structure of molecules. Implicit in the term ab initio is the notion that approximate solutions of Schrödinger's equation are sought "from the beginning," i. e. , without recourse to experimental data. From a more pragmatic viewpoint, the distin guishing feature of ab initio theory is usually the fact that no approximations are involved in the evaluation of the required molecular integrals. Consistent with current activity in the field, the first of these two volumes contains chapters dealing with methods per se, while the second concerns the application of these methods to problems of chemical interest. In asense, the motivation for these volumes has been the spectacular recent success of ab initio theory in resolving important chemical questions. However, these applications have only become possible through the less visible but equally important efforts of those develop ing new theoretical and computational methods and models. Henry F Schaefer Vll Contents Contents of Volume 4 XIX Chapter 1. Gaussian Basis Sets for Molecular Calculations Thom. H. Dunning, Ir. and P. Ieffrey Hay 1. Introduction . . . . . . . . . . . . . . . . 1 1. 1. Slater Functions and the Hydrogen Moleeule 1 1. 2. Gaussian Functions and the Hydrogen Atom 3 2. Hartree-Fock Calculations on the First Row Atoms 5 2. 1. Valence States of the First Row Atoms 6 7 2. 2. Rydberg States of the First Row Atoms 9 2. 3.
New Methods For Electronic Structure Calculations
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Author : Steven Robert White
language : en
Publisher:
Release Date : 1988
New Methods For Electronic Structure Calculations written by Steven Robert White and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with Electronic structure categories.
Electronic Structure
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Author : Richard M. Martin
language : en
Publisher: Cambridge University Press
Release Date : 2020-08-27
Electronic Structure written by Richard M. Martin and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-08-27 with Mathematics categories.
An authoritative text in condensed matter physics, unifying theory and methods to present electronic structure to students and researchers.
Electronic Structure Calculations On Graphics Processing Units
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Author : Ross C. Walker
language : en
Publisher: John Wiley & Sons
Release Date : 2016-02-16
Electronic Structure Calculations On Graphics Processing Units written by Ross C. Walker and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-02-16 with Science categories.
Electronic Structure Calculations on Graphics Processing Units: From Quantum Chemistry to Condensed Matter Physics provides an overview of computing on graphics processing units (GPUs), a brief introduction to GPU programming, and the latest examples of code developments and applications for the most widely used electronic structure methods. The book covers all commonly used basis sets including localized Gaussian and Slater type basis functions, plane waves, wavelets and real-space grid-based approaches. The chapters expose details on the calculation of two-electron integrals, exchange-correlation quadrature, Fock matrix formation, solution of the self-consistent field equations, calculation of nuclear gradients to obtain forces, and methods to treat excited states within DFT. Other chapters focus on semiempirical and correlated wave function methods including density fitted second order Møller-Plesset perturbation theory and both iterative and perturbative single- and multireference coupled cluster methods. Electronic Structure Calculations on Graphics Processing Units: From Quantum Chemistry to Condensed Matter Physics presents an accessible overview of the field for graduate students and senior researchers of theoretical and computational chemistry, condensed matter physics and materials science, as well as software developers looking for an entry point into the realm of GPU and hybrid GPU/CPU programming for electronic structure calculations.