Concepts In Electron Correlation

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Concepts in Electron Correlation

Author : Alex C. Hewson
Publisher : Springer Science & Business Media
ISBN 13 : 9401002134
Total Pages : 385 pages
Book Rating : 4.4/5 (1 download)

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Book Synopsis Concepts in Electron Correlation by : Alex C. Hewson

Download or read book Concepts in Electron Correlation written by Alex C. Hewson and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NATO sponsored Advanced Research Workshop on "Concepts in Electron Correlation" took place on the Croatian island of Hvar during the period from the 29th of September to the 3rd of October, 2002. The topic of electron correlation is a fundamental one in the field of condensed matter, and one that is being very actively studied both experimentally and theoretically at the present time. The manifestations of electron cor relation are diverse, and play an important role in systems ranging from high temperature superconductors, heavy fermions, manganite compounds with colossal magnetoresistance, transition metal compounds with metal insulator transitions, to mesoscopic systems and quantum dots. The aim of the workshop was to provide an opportunity for a dialogue between exper imentalists and theoreticians to assess the current state of understanding, and to set an agenda for future work. There was also a follow-up workshop on the same topic where the presentations included more background and introductory material for younger researchers in the field. The papers presented in these proceedings clearly demonstrate the di versity of current research on electron correlation. They show that real progress is being made in characterising systems experimentally and in developing theoretical approaches for a quantitative comparison with ex periment. The more one learns, however, the more there is to understand, and many of the contributions help to map out the territory which has yet to be explored. We hope that the articles in this volume will be a stimulus for such future work.

Electron Correlation in Molecules

Author : S. Wilson
Publisher : Courier Corporation
ISBN 13 : 0486150224
Total Pages : 305 pages
Book Rating : 4.4/5 (861 download)

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Book Synopsis Electron Correlation in Molecules by : S. Wilson

Download or read book Electron Correlation in Molecules written by S. Wilson and published by Courier Corporation. This book was released on 2014-07-01 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electron correlation effects are of vital significance to the calculation of potential energy curves and surfaces, the study of molecular excitation processes, and in the theory of electron-molecule scattering. This text describes methods for addressing one of theoretical chemistry's central problems, the study of electron correlation effects in molecules. Although the energy associated with electron correlation is a small fraction of the total energy of an atom or molecule, it is of the same order of magnitude as most energies of chemical interest. If the solution of quantum mechanical equations from first principles is to provide an accurate quantitative prediction, reliable techniques for the theoretical determination of the effect of electron correlation on molecular properties are therefore important. To that end, this text explores molecular electronic structure, independent electron models, electron correlation, the linked diagram theorem, group theoretical aspects, the algebraic approximation, and truncation of expansions for expectation values.

Electron Correlation in Molecules

Author : S. Wilson
Publisher : Courier Corporation
ISBN 13 : 0486458792
Total Pages : 305 pages
Book Rating : 4.4/5 (864 download)

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Book Synopsis Electron Correlation in Molecules by : S. Wilson

Download or read book Electron Correlation in Molecules written by S. Wilson and published by Courier Corporation. This book was released on 2007-05-11 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text addresses one of theoretical chemistry's central problems. Topics include molecular electronic structure, independent electron models, electron correlation, the linked diagram theorem, and related topics. 1984 edition.

Electron Correlations In The Solid State

Author : Norman H March
Publisher : World Scientific Publishing Company
ISBN 13 : 1911298941
Total Pages : 452 pages
Book Rating : 4.9/5 (112 download)

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Book Synopsis Electron Correlations In The Solid State by : Norman H March

Download or read book Electron Correlations In The Solid State written by Norman H March and published by World Scientific Publishing Company. This book was released on 1999-12-13 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: This invaluable book deals with the many-electron theory of the solid state. Mastery of the material in it will equip the reader for research in areas such as high-temperature superconductors and the fractional quantum Hall effect. The whole book has been designed to provide the diligent reader with a wide variety of approaches to many-electron theory.The level of the book is suitable for research workers and higher-degree students in a number of disciplines, embracing theoretical physics, materials science and solid-state chemistry. It should be useful not only to theorists in these areas but also to experimental scientists who desire to orient their programmes to address outstanding questions raised by many-body theory.

Electron Correlation in Molecules and Condensed Phases

Author : Norman H. March
Publisher : Springer Science & Business Media
ISBN 13 : 9780306448447
Total Pages : 416 pages
Book Rating : 4.4/5 (484 download)

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Book Synopsis Electron Correlation in Molecules and Condensed Phases by : Norman H. March

Download or read book Electron Correlation in Molecules and Condensed Phases written by Norman H. March and published by Springer Science & Business Media. This book was released on 1996-10-31 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference describes the latest research on correlation effects in the multicenter problems of atoms, molecules, and solids. The author utilizes first- and second-order matrices, including the important observable electron density rho(r), and the Green function for discussing quantum computer simulations. With its focus on concepts and theories, this volume will benefit experimental physicists, materials scientists, and physical and inorganic chemists as well as graduate students.

Electron Correlations in Molecules and Solids

Author : Peter Fulde
Publisher : Springer Science & Business Media
ISBN 13 : 3642578098
Total Pages : 492 pages
Book Rating : 4.6/5 (425 download)

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Book Synopsis Electron Correlations in Molecules and Solids by : Peter Fulde

Download or read book Electron Correlations in Molecules and Solids written by Peter Fulde and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dieser Titel verbindet die Festkörpertheorie mit der Quantenchemie. Neue Konzepte der Vielteilchen-Verarbeitung und Korrelations-Effekte, normale quantenchemische Verfahren mit Projektionstechniken, Greensche Funktionen und Monte-Carlo-Methoden werden erarbeitet. Anwendungsbereiche der Molekültheorie, von Halbleitern, supraleitender high-Tc-Materialien, etc., werden vorgestellt.

Theoretical Study of Electron Correlation Driven Superconductivity in Systems with Coexisting Wide and Narrow Bands

Author : Daisuke Ogura
Publisher : Springer Nature
ISBN 13 : 9811506671
Total Pages : 122 pages
Book Rating : 4.8/5 (115 download)

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Book Synopsis Theoretical Study of Electron Correlation Driven Superconductivity in Systems with Coexisting Wide and Narrow Bands by : Daisuke Ogura

Download or read book Theoretical Study of Electron Correlation Driven Superconductivity in Systems with Coexisting Wide and Narrow Bands written by Daisuke Ogura and published by Springer Nature. This book was released on 2019-10-23 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with the study of superconductivity in systems with coexisting wide and narrow bands. It has been previously suggested that superconductivity can be enhanced in systems with coexisting wide and narrow bands when the Fermi level is near the narrow band edge. In this book, the authors study two problems concerning this mechanism in order to: (a) provide a systematic understanding of the role of strong electron correlation effects, and (b) propose a realistic candidate material which meets the ideal criteria for high-Tc superconductivity. Regarding the role of strong correlation effects, the FLEX+DMFT method is adopted. Based on systematic calculations, the pairing mechanism is found to be indeed valid even when the strong correlation effect is considered within the formalism. In the second half of the book, the authors propose a feasible candidate material by introducing the concept of the “hidden ladder” electronic structure, arising from the combination of the bilayer lattice structure and the anisotropic orbitals of the electrons. As such, the book contributes a valuable theoretical guiding principle for seeking unknown high-Tc superconductors.

Ideas of Quantum Chemistry

Author : Lucjan Piela
Publisher : Elsevier
ISBN 13 : 0080466761
Total Pages : 1122 pages
Book Rating : 4.0/5 (84 download)

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Book Synopsis Ideas of Quantum Chemistry by : Lucjan Piela

Download or read book Ideas of Quantum Chemistry written by Lucjan Piela and published by Elsevier. This book was released on 2006-11-28 with total page 1122 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ideas of Quantum Chemistry shows how quantum mechanics is applied to chemistry to give it a theoretical foundation. The structure of the book (a TREE-form) emphasizes the logical relationships between various topics, facts and methods. It shows the reader which parts of the text are needed for understanding specific aspects of the subject matter. Interspersed throughout the text are short biographies of key scientists and their contributions to the development of the field.Ideas of Quantum Chemistry has both textbook and reference work aspects. Like a textbook, the material is organized into digestable sections with each chapter following the same structure. It answers frequently asked questions and highlights the most important conclusions and the essential mathematical formulae in the text. In its reference aspects, it has a broader range than traditional quantum chemistry books and reviews virtually all of the pertinent literature. It is useful both for beginners as well as specialists in advanced topics of quantum chemistry. The book is supplemented by an appendix on the Internet. * Presents the widest range of quantum chemical problems covered in one book * Unique structure allows material to be tailored to the specific needs of the reader * Informal language facilitates the understanding of difficult topics

Electron Correlations in Solids, Molecules, and Atoms

Author : Jozef T. Devreese
Publisher : Springer Science & Business Media
ISBN 13 : 1461334977
Total Pages : 440 pages
Book Rating : 4.4/5 (613 download)

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Book Synopsis Electron Correlations in Solids, Molecules, and Atoms by : Jozef T. Devreese

Download or read book Electron Correlations in Solids, Molecules, and Atoms written by Jozef T. Devreese and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: From July 20 till 31, 1981, the Advanced Study Institute on "Electron Correlations in Solids, Molecules and Atoms", sponsored by NATO, was held at the University of Antwerpen (U.I.A.), in the Conference Center Corsendonk. In the last few years, the problem of many-electron correlations has gained renewed attention, due to recent experimental and theoretic al developments. From the theoretical point of view, more sophisticated treatments of the homogeneous electron gas model evolved, including dynamical aspects of the electron correlation in the dielectric response. Furthermore, the homogeneous electron gas, which served as a model for simple metals, was extended to include spin- and charge-density waves and phasons. The concept of elementary excitations too was introduced not only in perfectly ordered metallic crystals, but also in magnetic alloys, in liquid metals and alloys, in semiconductors, and even in molecules and atoms. Fairly accurate quantitative calculations of these effects recently became possible, ranging from plasmon frequencies in atoms, over dielectric response of semiconduc tors and resistivity in magnetic alloys to electron-hole liquids and their phase separation. The recent technological evolution allowed for more accurate measurements in previously unaccessible domains, e.g. X-ray scatter ing and fast electron energy loss at large wavevector. Moreover, these new developments opened new perspectives in physics, accompany ing or even introducing the new concepts which also evolved in the theory.

Lecture Notes on Electron Correlation and Magnetism

Author : Patrik Fazekas
Publisher : World Scientific
ISBN 13 : 9810224745
Total Pages : 794 pages
Book Rating : 4.8/5 (12 download)

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Book Synopsis Lecture Notes on Electron Correlation and Magnetism by : Patrik Fazekas

Download or read book Lecture Notes on Electron Correlation and Magnetism written by Patrik Fazekas and published by World Scientific. This book was released on 1999 with total page 794 pages. Available in PDF, EPUB and Kindle. Book excerpt: Readership: Graduate students and researchers in condensed matter physics.

Quantum Field Theory in Strongly Correlated Electronic Systems

Author : Naoto Nagaosa
Publisher : Springer Science & Business Media
ISBN 13 : 9783540659815
Total Pages : 188 pages
Book Rating : 4.6/5 (598 download)

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Book Synopsis Quantum Field Theory in Strongly Correlated Electronic Systems by : Naoto Nagaosa

Download or read book Quantum Field Theory in Strongly Correlated Electronic Systems written by Naoto Nagaosa and published by Springer Science & Business Media. This book was released on 1999-09-20 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book the author extends the concepts introduced in his Quantum Field Theory in Condensed Matter Physics to situations in which the strong electronic correlations are crucial for the understanding of the observed phenomena. Starting from a model field theory to illustrate the basic ideas, more complex systems are analyzed in turn. A special chapter is devoted to the description of antiferromagnets, doped Mott insulators, and quantum Hall liquids from the point of view of gauge theory.

Methods in Computational Molecular Physics

Author : Geerd H.F. Diercksen
Publisher : Springer Science & Business Media
ISBN 13 : 9400972008
Total Pages : 367 pages
Book Rating : 4.4/5 (9 download)

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Book Synopsis Methods in Computational Molecular Physics by : Geerd H.F. Diercksen

Download or read book Methods in Computational Molecular Physics written by Geerd H.F. Diercksen and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 367 pages. Available in PDF, EPUB and Kindle. Book excerpt: This NATO Advanced Study Institute was concerned with modern ab initio methods for the determination of the electronic structure of molecules. Recent years have seen considerable progress in computer technology and computer science and these developments have had a very significant influence on computational molecular physics. Progress in computer technology has led to increasingly larger and faster systems as well as powerful minicomputers. Simultaneous research in computer science has explored new methods for the optimal use of these resources. To a large extent develop ments in computer technology, computer science and computational molecular physics have been mutually dependent. The availability of new computational resources, particularly minicomputers and, more recently, vector processors, has stimulat'ed a great deal of research in molecular physics. Well established techniques have been reformulated to make more efficient use of the new computer technology and algorithms which were previously computationally intractable have now been successfully implemented. This research has given a new and exciting insight into molecular structure and molecular processes by enabling smaller systems to be studied in greater detail and larger systems to be studied for the first time.

Correlated Electrons in Quantum Matter

Author : Peter Fulde
Publisher : World Scientific
ISBN 13 : 9814397229
Total Pages : 552 pages
Book Rating : 4.8/5 (143 download)

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Book Synopsis Correlated Electrons in Quantum Matter by : Peter Fulde

Download or read book Correlated Electrons in Quantum Matter written by Peter Fulde and published by World Scientific. This book was released on 2012-08-08 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: An understanding of the effects of electronic correlations in quantum systems is one of the most challenging problems in physics, partly due to the relevance in modern high technology. Yet there exist hardly any books on the subject which try to give a comprehensive overview on the field covering insulators, semiconductors, as well as metals. The present book tries to fill that gap. It intends to provide graduate students and researchers a comprehensive survey of electron correlations, weak and strong, in insulators, semiconductors and metals. This topic is a central one in condensed matter and beyond that in theoretical physics. The reader will have a better understanding of the great progress which has been made in the field over the past few decades. Contents:IntroductionIndependent ElectronsHomogeneous Electron GasDensity Functional TheoryWavefunction-Based MethodsCorrelated Ground-State WavefunctionsQuasiparticle ExcitationsIncoherent ExcitationsCoherent-Potential ApproximationsStrongly Correlated ElectronsTransition MetalsTransition-Metal OxidesHeavy QuasiparticlesExcitations with Fractional ChargesSuperconductivity Readership: Graduate students and researchers in condensed matter physics. Keywords:Electron Correlations;Many-body Theory;Quasi-Particles;Fractional Charges;Superconductivity;Many-Body WavefunctionsKey Features:Besides approaches based on Density Functional Theory, the importance of many-body wavefunction and projection methods is emphasizedConsiderable space is devoted to systems with strong electron correlations evident in high-Tc superconducting cupratesTransition metals and their oxides are discussed as well as compounds with heavy quasiparticlesDifferent competing methods for describing correlation effects are presentedAt various places a connection to relevant experiments is madeReviews: “Peter Fulde's book is well suited as an introduction to the general field of correlated electron systems… For this purpose some elementary chapters are included. Finally, the book is hard work but also fun to read because of its personal style.” Prof. Dr. Joachim Keller Institut für Theoretische Physik Universität Regensburg “Written with great pedagogical skill, it will be of interest to both experts in the field and graduate students. The book presents a consistent description of a new branch of solid state physics — the theory of strongly correlated systems which cannot be treated by conventional approaches as the density functional theory being successful for many years in describing band structure of solids. In this respect it can be used as a textbook for a university course on this new and fascinating branch of solid state physics.” Professor Nikolay Pladika Joint Institute for Nuclear Research “Peter Fulde provides an excellent introduction to this field. This book provides a very careful treatment of an extraordinarily wide range of topics, and is particularly strong on transition-metal oxides and heavy fermion systems. This carefully written book can be recommended to a very wide readership.” Contemporary Physics

Three Approaches to Electron Correlation in Atoms

Author : Oktay Sinanoglu
Publisher :
ISBN 13 : 9780300011487
Total Pages : 0 pages
Book Rating : 4.0/5 (114 download)

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Book Synopsis Three Approaches to Electron Correlation in Atoms by : Oktay Sinanoglu

Download or read book Three Approaches to Electron Correlation in Atoms written by Oktay Sinanoglu and published by . This book was released on 1970 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Interacting Electrons

Author : Richard M. Martin
Publisher : Cambridge University Press
ISBN 13 : 1316558568
Total Pages : 843 pages
Book Rating : 4.3/5 (165 download)

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Book Synopsis Interacting Electrons by : Richard M. Martin

Download or read book Interacting Electrons written by Richard M. Martin and published by Cambridge University Press. This book was released on 2016-06-30 with total page 843 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent progress in the theory and computation of electronic structure is bringing an unprecedented level of capability for research. Many-body methods are becoming essential tools vital for quantitative calculations and understanding materials phenomena in physics, chemistry, materials science and other fields. This book provides a unified exposition of the most-used tools: many-body perturbation theory, dynamical mean field theory and quantum Monte Carlo simulations. Each topic is introduced with a less technical overview for a broad readership, followed by in-depth descriptions and mathematical formulation. Practical guidelines, illustrations and exercises are chosen to enable readers to appreciate the complementary approaches, their relationships, and the advantages and disadvantages of each method. This book is designed for graduate students and researchers who want to use and understand these advanced computational tools, get a broad overview, and acquire a basis for participating in new developments.

Electron Correlation in Small Molecules

Author : Andrew Crowther Hurley
Publisher :
ISBN 13 :
Total Pages : 296 pages
Book Rating : 4.:/5 (44 download)

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Book Synopsis Electron Correlation in Small Molecules by : Andrew Crowther Hurley

Download or read book Electron Correlation in Small Molecules written by Andrew Crowther Hurley and published by . This book was released on 1976 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Structure and Dynamics of Atoms and Molecules: Conceptual Trends

Author : Jean-Louis Calais
Publisher : Springer Science & Business Media
ISBN 13 : 9401102635
Total Pages : 269 pages
Book Rating : 4.4/5 (11 download)

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Book Synopsis Structure and Dynamics of Atoms and Molecules: Conceptual Trends by : Jean-Louis Calais

Download or read book Structure and Dynamics of Atoms and Molecules: Conceptual Trends written by Jean-Louis Calais and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt: The rivers run into the sea, yet the sea is not full Ecclesiastes What is quantum chemistry? The straightforward answer is that it is what quan tum chemists do. But it must be admitted, that in contrast to physicists and chemists, "quantum chemists" seem to be a rather ill-defined category of scientists. Quantum chemists are more or less physicists (basically theoreticians), more or less chemists, and by and large, computationists. But first and foremost, we, quantum chemists, are conscious beings. We may safely guess that quantum chemistry was one of the first areas in the natural sciences to lie on the boundaries of many disciplines. We may certainly claim that quantum chemists were the first to use computers for really large scale calculations. The scope of the problems which quantum chemistry wishes to answer and which, by its unique nature, only quantum chemistry can answer is growing daily. Retrospectively we may guess that many of those problems meet a daily need, or are say, technical in some sense. The rest are fundamental or conceptual. The daily life of most quantum chemists is usually filled with grasping the more or less technical problems. But it is at least as important to devote some time to the other kind of problems whose solution will open up new perspectives for both quantum chemistry itself and for the natural sciences in general.