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Hadrons --- Congresses --- Quantum chromodynamics

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The University of Bologna and its Academy of Sciences, in collaboration with the Italian National Institute for Nuclear Physics and the Italian Physical Society, celebrated in 1998 the bicentenary of a great pioneer in the field of electric phenomena — Luigi Galvani, the father of macroelectricity. During these two centuries, the physics of electric phenomena has given rise first to the Maxwell equations, then to quantum electrodynamics, and finally to the synthesis of all reproducible phenomena, the “Standard Model”. A cornerstone of the Standard Model is quantum chromodynamics (QCD), which describes the interaction between quarks and gluons in the innermost part of the structure of matter.The discovery of QCD will be recalled in the future as one of the greatest achievements of mankind. Many physicists, the world over, have contributed to its creation on both the experimental and the theoretical front. Professor Antonino Zichichi has played an important role in this scientific venture, as documented by his works which are reproduced in this invaluable volume.One of the founders of European physics, Professor Victor F Weisskopf, contributes with his memories of the time when QCD had many problems. This volume owes its existence to a founding father of QCD, Professor Vladimir N Gribov, whose sudden demise prevented him from directly contributing to its final edition. Two world leaders in subnuclear theoretical physics, Professors Gerardus 't Hooft and Gabriele Veneziano, illustrate the significance of the contributions of Antonino Zichichi in QCD.

Effective interactions (Nuclear physics) --- Quantum chromodynamics. --- Chromodynamics, Quantum --- QCD (Nuclear physics) --- Particles (Nuclear physics) --- Quantum electrodynamics --- Interactions, Effective (Nuclear physics) --- Nuclear reactions

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Field theory (Physics) --- High temperatures --- Many-body problem --- Mathematical physics --- Quantum chromodynamics --- Physical mathematics --- Physics --- n-body problem --- Problem of many bodies --- Problem of n-bodies --- Mechanics, Analytic --- Elevated temperatures --- Heat barrier --- Ultrahigh temperatures --- Heat --- Chromodynamics, Quantum --- QCD (Nuclear physics) --- Particles (Nuclear physics) --- Quantum electrodynamics --- Classical field theory --- Continuum physics --- Continuum mechanics --- Mathematics --- Many-body problem. --- Quantum chromodynamics. --- High temperatures. --- Field theory (Physics). --- Mathematical physics. --- Champs, Théorie des (Physique) --- Hautes températures --- Problème des N corps --- Physique mathématique --- Chromodynamique quantique

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The book with contributions from the joint interdisciplinary workshop covers important numerical bottleneck problems from lattice quantum chromodynamics: 1) The computation of Green's functions from huge sparse linear systems and the determination of flavor-singlet observables by stochastic estimates of matrix traces can both profit from novel preconditioning techniques and algebraic multi-level algorithms. 2) The exciting overlap fermion formulation requires the solution of linear systems including a matrix sign function, an extremely demanding numerical task that is tackled by Lanczos/projection methods. 3) Realistic simulations of QCD must include three light dynamical quark flavors with non-degenerate masses. Algorithms using polynomial approximations of the matrix determinant can deal with this situation. The volume aims at stimulating synergism and creating new links between lattice quantum and numerical analysis.

Lattice gauge theories --- Quantum chromodynamics --- Théories de jauge sur réseau --- Chromodynamique quantique --- Mathematical models --- Congresses --- Modèles mathématiques --- Congrès --- 519.61 --- 519.245 --- Numerical analysis --- Mathematical analysis --- 519.245 Stochastic approximation. Monte Carlo methods --- Stochastic approximation. Monte Carlo methods --- 519.61 Numerical methods of algebra --- Numerical methods of algebra --- Numerical analysis. --- Mathematical physics. --- Algorithms. --- Numerical Analysis. --- Theoretical, Mathematical and Computational Physics. --- Algorism --- Algebra --- Arithmetic --- Physical mathematics --- Physics --- Foundations --- Mathematics