Computational Approaches in Condensed-Matter Physics: Proceedings of the 6th Nishinomiya-Yukawa Memorial Symposium, Nishinomiya, Japan, October 24 and

ISBN-13: 9783642848230 / Angielski / Miękka / 2012 / 299 str.

Seiji Miyashita; Masatoshi Imada; Hajime Takayama

Opis

Interacting many-body systems are the main subjects of research in theoretical condensed matter physics, and they are the source of both the interest and the difficulty in this field. In order to understand the macroscopic properties of matter in terms of macroscopic knowledge, many analytic and approximate methods have been introduced. The contributions to this proceedings volume focus on the most recent developments of computational approaches in condensed matter physics. Monte Carlo methods and molecular dynamics simulations applied to strongly correlated classical and quantum systems such as electron systems, quantum spin systems, spin glassss, coupled map systems, polymers and other random and comlex systems are reviewed. Comprising easy to follow introductions to each field covered and also more specialized contributions, this proceedings volume explains why computational approaches are necessary and how different fields are related to each other.

Spis treści

I First Principles Calculations.- First Principles Methods for Correlated Ground States of Solids.- Computational Physics Approach to Scanning Tunneling Microscopy and Spectroscopy.- Electronic Structures of Fullerenes and Fullerides.- Structure Optimization and Dynamics of Fine Particles in LCAO Methods.- Electronic Structures of Hetero-Crystalline Semiconductor Superlattices.- An Application of the Car-Parrinello Method to a Study of Alkali-Metal Adsorbed Si(001) Surface.- Ab-Initio Molecular Dynamics Study of the Si(001) Surface.- Traditional and Ab-Initio Molecular Dynamics Simulations — Applications to Glass Transition and Amorphous SiH.- II Strongly Correlated Electron Systems.- Projection Monte Carlo Method and Choice of the Optimal Trial Wavefunction.- Simulation Method for Strongly Correlated Systems and Its Applications.- Recent Progress in the Auxiliary-Field Many-Fermion Simulation Method.- S-Wave Superconductivity in the t — J Model with Two Planes.- Calculation of Excitation Spectra Based on the Numerical Renormalization Group Method.- Real Space Numerical Renormalization Groups for Hubbard Models.- Bayesian Methods, Maximum Entropy, and Quantum Monte Carlo.- Anyons on a Lattice.- Ground State Wave Function of an Extended Hubbard Model.- Numerical Study on the t-t?—J-J? Model.- Random Magnetic Field and Anderson Localization.- Numerical Studies of Models with Suhl-Kondo Pair Transfer Interaction.- III Quantum Spin Systems and Others.- Numerical Methods for Quantum Spin Systems.- Quantum Effects in Random Spin Systems.- Numerical Calculations of S=1 Heisenberg Antiferromagnetic Chain.- Frustrated Quantum Antiferromagnets in Two Dimensions.- Symmetry Breaking in a Quantum Double-Well Chain.- Numerical Experiments on Frustrated Quantum Spin Systems.- Haldane Antiferromagnet in a Magnetic Field.- Spin Correlations in the S=1 XXZ Chain.- Crossover Between the Haldane Gap Phase and the Dimer Phase in the Spin 1/2 Alternating Heisenberg Chain.- Ground-State Properties of the Frustrated One-Dimensional S=1 Heisenberg Model.- Numerical Study of Quantum Spin Systems.- The Ground State of Frustrated Quantum Spin Systems and the Marshall Condition.- Ground State of the Two-Dimensional Square-Lattice Antiferromagnet with Dzyaloshinski-Moriya Interaction.- IV Critical Phenomena.- Numerical CAM Analysis of Critical Phenomena in Spin Systems.- Monte Carlo Study of the Random Potts Model.- Coherent-Anomaly Method in Two-Dimensional Antiferromagnetic Ising Models on Square and Triangular Lattices.- Spin Ordering Property of a System with Nearly Degenerate Stable States.- V Spin Glasses.- Spin Glasses: Results from Numerical Simulations.- A Hybrid Monte-Carlo Spin-Dynamics Method and Its Applications to the ±J Heisenberg Models in Three Dimensions.- Chiral Order in Vector Spin Glasses.- Simulation of Models for Isotropic and Anisotropic Orientational Glasses.- The Phase Diagram of the Three-Dimensional ±J-Ising Spin Glass Model.- Phase Diagram and Ordered Phase of the ±J Model by the Interfacial Method.- Replica Optimization Method for Ground-State Search of Random Spin-Systems.- Anomalous Phase in the 2D EA Ising Spin Glass.- AC Susceptibility of the Three-Dimensional ±J Ising Model.- VI Other Complex Systems.- Monte Carlo Simulation of Polymeric Materials — Still a Challenge?.- Simulating Spatiotemporal Chaos with Coupled Map Lattices.- Dynamical Behavior of Thermostated Harmonic Oscillators.- Computer Simulation of High Density Amorphous Ice.- Statistical Mechanics of Polymer Networks.- Studies on Metastable States by Ising Machine m-TIS2.- Raman Correlation Function of Percolating Networks.- Dynamics of Charge Density Wave Systems with Multidomain Structure.- VII Computer Facilities.- Computational Physics on Connection Machine Supercomputers.- Ising Machine m-TIS2.- Index of Contributors.

O autorze

Recent developments of computational approaches in condensed matter physics are reviewed in terms of various interesting results and improvements in methodology and algorithms, revealing the relationships between different fields.