Recent Progress in Many-Body Theories

ISBN-13: 9781461282723 / Angielski / Miękka / 2011 / 404 str.

A. J. Kallio; E. Pajanne;R. F. Bishop

Opis

The present volume contains the texts of the invited talks delivered at the Fifth International Conference on Recent Progress in Many-Body Theories held in Oulu, Finland during the period 3-8 August 1987. The general format and style of the meeting followed closely those which had evolved from the earlier conferences in the series: Trieste 1978, Oaxtepec 1981, Altenberg 1983 and San Francisco 1985. Thus, the conferences in this series are in tended, as far as is practicable, to cover in a broad and balanced fashion both the entire spectrum of theoretical tools developed to tackle the quan tum many-body problem, and their major fields of. application. One of the major aims of the series is to foster the exchange of ideas and techniques among physicists working in such diverse areas of application of many-body theories as nucleon-nucleon interactions, nuclear physics, astronomy, atomic and molecular physics, quantum chemistry, quantum fluids and plasmas, and solid-state and condensed matter physics. A special feature of the present meeting however was that particular attention was paid in the programme to such topics of current interest in solid-state physics as high-temperature superconductors, heavy fermions, the quantum Hall effect, and disorder. A panel discussion was also organised during the conference, under the chair manship of N. W. Ashcroft, to consider the latest developments in the extreme ly rapidly growing field of high-T superconductors."

Spis treści

High Tc Superconductors and Heavy Fermions.- Heavy Electrons in Metals (Review).- Understanding Heavy Electron Systems (Review).- High Tc Superconductivity — Hubbard Model ? (Review).- Fluctuation Effects in Electron Systems: Their Role in Electron-Pairing Mechanisms.- Theory for High Tc-- Superconductivity in La2-xMxCuO4- and YBa2Cu3O7-?- Systems.- Theory of Heavy Fermions and Mechanism of Heavy Fermion Superconductivity — Application to High Tc Oxide Superconductors.- Electron Correlations in Different Electron Bonds.- The Two-Dimensional Hubbard Model: Numerical Evaluation of the Properties of Projected Antiferromagnetic and Superconducting Wavefunctions.- Quantum Hall Effect.- Theory of the Fractional Quantum Hall Effect (Review).- Numerical Investigation of the Fractional Quantum Hall Effect.- Excitations in the Fractional Quantum Hall Effect at v = 1/2: Layered Electron Systems.- Disordered Systems.- A Brief Introduction to Spin Glasses and Related Complex Problems (Review).- Solitons in Disordered Systems or Application of Catastrophe Theory to Solitons.- Variational Studies of Strongly Correlated Ground States: Applications to the Anderson Lattice and the Hubbard Model.- Supercooled Liquids and Glass Transitions.- Magnetoconductance of Two Dimensional Disordered Systems.- Theory of the Spin Dynamics of Modulated Magnets.- The Sillium Model.- Andreev Scattering at Rough Surfaces.- Quantum Fluids.- Density-Matrix Theory of Supercooled Hydrogen.- Microscopic Calculations on Liquid 3He.- Many-Body Aspects of the Theory of Fermi Liquids Near Boundaries.- Quasiparticle, Natural, and Mean-Field Orbitals in Drops of Liquid Helium.- Dynamic Correlations in the Electron Gas: The Mean Field Picture and Beyond.- Exact Solution for the Hartree Fock Approximation to the Electron Gas.- Longitudinal Response and Sum Rules in Nuclei and Nuclear Matter.- Many-Body Methods.- Convergence and Critical Phenomena Studies in ?1+14 -Field Theories via the Coupled Cluster Method.- A Periodic Small-Cluster Approach to Many-Body Problems.- A Class of Solvable Models of Fermion Fluids.- Many-Body Effects in Dense Plasmas: Spin-Dependent Electron Interactions Across the Compressibility and Spin-Susceptibility Anomalies.- A Novel Perturbation Theory Approach with Applications to Photoemission and X-Ray Spectroscopy.- Many-Body Theory of Auger Processes in Metals and Semiconductors.- Fermion Parquet: The Approximations.- Fermion Parquet Equations.- Monte-Carlo Simulation on Multi-Processor Supercomputers: The Q2R Model.- Fully Numerical Solution of Hartree-Fock and Similar Equations for Diatomic Molecules.- Kinetic Equations for Large Transient Energy Fluctuations in Small Volumes in Dense Matter.- Whither Many-Body Theory ? — A Summary of the Oulu Meeting.- Professor Hermann G. Kümmel 65 Years.- Correlated Basis Functions and All That: A Tribute to John W. Clark, Recipient of the Second Feenberg Award.- Participants.