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Numerical Challenges in Lattice Quantum Chromodynamics

  • Kartonierter Einband
  • 200 Seiten
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Lattice gauge theory is a fairly young research area in Theoretical Particle Physics. It is of great promise as it offers the fram... Weiterlesen
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Lattice gauge theory is a fairly young research area in Theoretical Particle Physics. It is of great promise as it offers the framework for an ab-initio treatment of the nonperturbative features of strong interactions. Ever since its adolescence the simulation of quantum chromodynamics has attracted the interest of numerical analysts and there is growing interdisciplinary engage ment between theoretical physicists and applied mathematicians to meet the grand challenges of this approach. This volume contains contributions of the interdisciplinary workshop "Nu merical Challenges in Lattice Quantum Chromo dynamics" that the Institute of Applied Computer Science (IAI) at Wuppertal University together with the Von-Neumann-Institute-for-Computing (NIC) organized in August 1999. The purpose of the workshop was to offer a platform for the exchange of key ideas between lattice QCD and numerical analysis communities. In this spirit leading experts from both fields have put emphasis to transcend the barriers between the disciplines. The meetings was focused on the following numerical bottleneck problems: A standard topic from the infancy of lattice QCD is the computation of Green's functions, the inverse of the Dirac operator. One has to solve huge sparse linear systems in the limit of small quark masses, corresponding to high condition numbers of the Dirac matrix. Closely related is the determination of flavor-singlet observables which came into focus during the last years.

Thomas Lippert, Bankkaufmann, Diplomkaufmann, Vorstand des Aktionsbund Aktiver Anlegerschutz, eines der größten Anlegerschutzvereine Deutschlands

Overlap Fermions and Matrix Functions.- The Overlap Dirac Operator.- Solution of f (A)x = bwith Projection Methods for the Matrix A.- A Numerical Treatment of Neuberger's Lattice Dirac Operator.- Fast Methods for Computing the Neuberger Operator.- Light Quarks, Lanczos and Multigrid Techniques.- On Lanczos-Type Methods for Wilson Fermions.- An Algebraic Multilevel Preconditioner for Symmetric Positive Definiteand Indefinite Problems.- On Algebraic Multilevel Preconditioning.- On Algebraic Multilevel Preconditioners in Lattice Gauge Theory.- Flavor Singlet Operators and Matrix Functionals.- Stochastic Estimator Techniques for Disconnected Diagrams.- Noise Methods for Flavor Singlet Quantities.- Novel Numerical Techniques for Full QCD.- A Noisy Monte Carlo Algorithm with Fermion Determinant.- Least-Squares Optimized Polynomials for Fermion Simulations.- One-Flavour Hybrid Monte Carlo with Wilson Fermions.


Titel: Numerical Challenges in Lattice Quantum Chromodynamics
Untertitel: Joint Interdisciplinary Workshop of John von Neumann Institute for Computing, Jülich, and Institute of Applied Computer Science, Wuppertal University, August 1999
EAN: 9783540677321
ISBN: 3540677321
Format: Kartonierter Einband
Herausgeber: Springer Berlin Heidelberg
Anzahl Seiten: 200
Gewicht: 312g
Größe: H235mm x B155mm x T11mm
Jahr: 2000
Auflage: Softcover reprint of the original 1st ed. 2000

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