Section I: High Tc Superconductivity.- Flux Phases in the t-J Model.- Two Dimensional Phenomena in High Tc Superconductors.- Novel Singular Solutions of BCS Theory.- Magnetism and Superconductivity in Doped Lamellar Copper Oxide Systems.- A Vortex Lattice of Anyons in Strongly Correlated Systems.- Electron-Hole Liquid Model for High Tc Superconductivity.- Strong Electron Correlations in CuO2 Planes of High Temperature Superconductors.- Two Component Superconductivity.- Section II: Localization.- Coherent Back Scattering and Other Optical Effects in Random Media.- Many Body Techniques for Wave Propagating in Random Media.- Localization and Folding of Random Chains.- Section III: Nuclear Physics.- A New Theory of Collisions.- Calculations of the Ground State of 16O.- A New State of Nuclear Matter.- The "Ideal" Shell Model Calculation.- Non-Spurious Harmonic Oscillator States for Many-Body Systems.- Section IV: Microscopic Approaches I.- Inhomogeneous Quantum Liquids: Many Body Theory on the Testbench.- Coupled Cluster Parametrizations of Model Field Theories and their Bargman-Space Representations.- Fermion Monte Carlo Algorithms for Quantum Fluids.- Bose Condensate in Superfluid 4He and Momentum Distributions by Deep Inelastic Scattering.- Section V: Mesoscopic Systems.- Ballistic Electronic Transport in Semiconductor Structures.- Random-Matrix-Model for Fluctuations in Microscopic and Mesoscopic Systems.- Section VI: Strongly Correlated Systems.- Super-Effective-Field CAM Theory of Strongly Correlated Electron and Spin Systems.- Unified Description of Strongly and Weakly Correlated Electrons.- Fermi Hyper-Netted Chain Theory on a Lattice: The Hubbard Model.- Many Body Methods Applied to Scattering of Composite Particles in Gauge Theory with Confinement.- Section VII Microscopic Approaches Ii.- Two-Body Density Matrix for Quantum Fluids.- New Microscopic Description of Liquid 3He.- Excitation Spectrum of a 3He Impurity in 4He.- Section VIII: Feenberg Medal Presentation And Summary.- Achievements in Quantum Monte Carlo.- Summary of The VI International Conference on Recent Progress in Many Body Theories Arad Israel.

This text describes novel treatments of quantum problems using enhanced quantization procedures. When treated conventionally, certain systems yield trivial and unacceptable results. This book describes enhanced procedures, generally involving extended correspondence rules for the association of a classical and a quantum theory, which, when applied to such systems, yield nontrivial and acceptable results. The text begins with a review of classical mechanics, Hilbert space, quantum mechanics, and scalar quantum field theory. Next, analytical skills are further developed, a special class of models is studied, and a discussion of continuous and discontinuous perturbations is presented. Later chapters cover two further classes of models both of which entail discontinuous perturbations. The final chapter offers a brief summary, concluding with a conjecture regarding interacting covariant scalar quantum field theories. Symmetry is repeatedly used as a tool to help develop solutions for simple and complex problems alike. Challenging exercises and detailed references are included.

Solid-State Physics, Superconductivity: Electronic Structure of Highly Correlated Systems; L.M. Falicov, J.K. Freericks. Quantum Fluids: Unusual One-Electron States on the Surface of Liquid Helium; E. Baskin. Nuclear Physics: Nucleonic Superfluid; J.W. Clark, et al. Atoms and Molecules: Fock-Space Coupled Cluster Method; S.R. Hughes, U. Kaldor. Classical Fluids, Polymers, Plasmas: Fluids of Hard Convex Molecules; M.S. Wertheim. Lattice Theories, Phase Transitions: Line Tension at Wetting and Prewetting Transitions; B. Widom. Cellular Automata: Cellular Automata and Spread of Damage; C. Tsallis. Fundamental Quantum Mechanics: Hannay Angle in Classical Mechanics and its Gauge-Invariant Generalization; D. Kobe. 51 additional articles. Index.

In Volume 1, A Monte Carlo Primer - A Practical Approach to Radiation Transport (the "Primer"), we attempt to provide a simple, convenient, and step-by-step approach to the development, basic understanding, and use of Monte Carlo methods in radiation transport. Using the PC, the Primer begins by developing basic Monte Carlo codes to solve simple transport problems, then introduces a teaching tool, the Probabilistic Framework Code (PFC), as a standard platform for assembling, testing, and executing the various Monte Carlo techniques that are presented. This second volume attempts to continue this approach by using both custom Monte Carlo codes and PFC to apply the concepts explained in the Primer to obtain solutions to the exercises given at the end of each chapter in the Primer. A relatively modest number of exercises is included in the Primer. Some ambiguity is left in the statement of many of the exercises because the intent is not to have the user write a particular, uniquely correct piece of coding that produces a specific number as a result, but rather to encourage the user to think about the problems and develop further the concepts explained in the text. Because in most cases there is more than one way to solve a Monte Carlo transport problem, we believe that working with the concepts illustrated by the exercises is more important than obtaining anyone particular solution.

A comprehensive survey of the most recent results from the field of quark-gluon structure of the nucleon, in particular how the spin of the nucleon is shared by its constituents. After very intriguing results from CERN and SLAC at the end of the 1980s, the last decade has seen a set of second-generation experiments at high energy accelerators that have yielded precise information on the solution of the 'Spin Crisis' - as well as opening up new questions. The articles are written by experts from the leading collaboration and theory groups as well as providing an expert summary of the state of the art, the book points the way to future research directions. Its main focus is on semi-inclusive and exclusive measurements of deep inelastic lepton scattering, which enables for the first time the determination of the flavor-separated quark spin distributions. Future developments on generalized parton distributions and their interpretation as well as the transverse spin structure are also covered. An indispensable volume for all working in hadronic physics.

Many facets of quantum chromodynamics (QCD) are relevant to the in-depth discussion of theoretical and experimental aspects of high-energy nucleus-nucleus collisions. Exciting phenomena are being discovered in such ultrarelativistic heavy ion collisions, notably the increasingly important role of deconfined quark-gluon matter created in the early stage. The book contains lectures on the physics of hot dense matter, the expected phase transitions and colour superconductivity, recent developments in the treatment of nonlinear effects at large parton densities, fundamental issues in the phenomenology of ultrarelativistic heavy collisions. The latest data on heavy ion collisions are also presented.

A unique collection of lectures on the many facets of QCD relevant to the physics of hot dense matter.

This introduction to nuclear physics provides an excellent basis for a core undergraduate course in this area. The authors show how simple models can provide an understanding of the properties of nuclei, both in their ground and excited states, and of the nature of nuclear reactions. They include chapters on nuclear fission, its application in nuclear power reactors, the role of nuclear physics in energy production and nucleosynthesis in stars. This new edition contains several additional topics: muon-catalyzed fusion, the nuclear and neutrino physics of supernovae, neutrino mass and neutrino oscillations, and the biological effects of radiation. A knowledge of basic quantum mechanics and special relativity is assumed. Each chapter ends with a set of problems accompanied by outline solutions.

The book is an up-to-date, self-contained account of deep inelastic scattering in high-energy physics. Intended for graduate students and physicists new to the subject, it covers the classic results which led to the quark-parton model of hadrons and the establishment of quantum chromodynamics as the theory of the strong nuclear force, in addition to new vistas in the subject opened up by the electron-proton collider HERA. The extraction of parton momentum distribution functions, a key input for physics at hadron colliders such as the Tevatron at Fermi Lab and the Large Hadron Collider at CERN, is described in detail. The challenges of the HERA data at 'low x' are described and possible explanations in terms of gluon dynamics and other models outlined. Other chapters cover: jet production at large momentum transfer and the determination of the strong coupling constant, electroweak interactions at very high momentum transfers, the extension of deep inelastic techniques to include hadronic probes, a summary of fully polarised inelastic scattering and the spin structure of the nucleon, and finally a brief account of methods in searching for signals 'beyond the standard model'.

Cartagena of Indias, Columbia, September 13-19, 1998

In this history of extinction and existential risk, a Newsweek and Bloomberg popular science and investigative journalist examines our most dangerous mistakes -- and explores how we can protect and future-proof our civilization. End Times is a compelling work of skilled reportage that peels back the layers of complexity around the unthinkable -- and inevitable -- end of humankind. From asteroids and artificial intelligence to volcanic supereruption to nuclear war, veteran science reporter and TIME editor Bryan Walsh provides a stunning panoramic view of the most catastrophic threats to the human race. In End Times, Walsh examines threats that emerge from nature and those of our own making: asteroids, supervolcanoes, nuclear war, climate change, disease pandemics, biotechnology, artificial intelligence, and extraterrestrial intelligence. Walsh details the true probability of these world-ending catastrophes, the impact on our lives were they to happen, and the best strategies for saving ourselves, all pulled from his rigorous and deeply thoughtful reporting and research. Walsh goes into the room with the men and women whose job it is to imagine the unimaginable. He includes interviews with those on the front lines of prevention, actively working to head off existential threats in biotechnology labs and government hubs. Guided by Walsh's evocative, page-turning prose, we follow scientific stars like the asteroid hunters at NASA and the disease detectives on the trail of the next killer virus. Walsh explores the danger of apocalypse in all forms. In the end, it will be the depth of our knowledge, the height of our imagination, and our sheer will to survive that will decide the future.

From the recent discovery of the "top quark" to the search for the Higgs particle, the frontiers of particle physics beckon the imagination. Exploring in detail the full history of particle physics, Yuval Ne'eman and Yoram Kirsh explain in an engaging, nonmathematical style the principles of modern theories such as quantum mechanics and Einstein's relativity, and they brilliantly succeed in conveying to the reader the excitement that accompanied the original discoveries. The book is spiced with amusing stories on how great discoveries were made, and Ne'eman, who took an active role in some of the historical advances in particle physics, gives his personal point of view. New to this edition are sections on the discovery of the top quark; the rise and fall of the supercollider project; the detection of the Zo particle in e+e- colliders; and the use of the width of the Zo to determine the number of "generations" of quarks and leptons. The Particle Hunters will interest anyone who wants to keep pace with the progress of human knowledge. Yuval Ne'eman discovered the basic symmetry of the subatomic particles of matter, leading him to their classification, to the prediction of new particles, and to his identification (in 1962) of a new layer in the structure of matter ("quarks"). Yoram Kirsh was awarded the Aharon Katzir Prize for popular science writing in 1975.

A comprehensive survey of recent theoretical and experimental progress in the area of electron-photon interaction and dense media. A state-of-the-art discussion of radiation production, with descriptions of new ideas and technologies that enhance the production of X-rays in the form of channelling, transition and parametric X-ray production. Progress in electron beam physics to produce sub-picosecond electron bunches from low-energy linear accelerators make it possible to produce coherent, high brightness, submillimeter radiation and sub-picosecond X-ray pulses. Micro-undulators in the form of bent crystalline structures hold great promise as future X-ray sources.

This volume presents summaries of recent research results on the related subjects of source processes and explosion yield estimation, which are important elements of any treaty verification system. The term Source Processes, in the context of nuclear test monitoring, refers to a wide range of research topics. In a narrow definition, it describes the complex physical phenomena that are directly associated with a nuclear explosion, and the catastrophic deformation and transformation of the material surrounding the explosion. In a broader sense, it includes a host of topics related to the inference of explosion phenomena from seismic and other signals. A further widening of the definition includes the study and characterization of source processes of events other than nuclear, such as earthquakes and, in particular, mining explosions. This latter research is especially important relative to the question of identifying and discriminating nuclear explosions from other seismic events. Explosion Yield Estimation deals with the corresponding inverse problem of inferring explosion source characteristics through analyses of the various types of seismic signals produced by the explosion. This is a complex technical task which has been the focus of some of the most contentious treaty monitoring debates. The current compilation of eight articles on Source Processes and six articles on Explosion Yield Estimation gives a good representation of state-of-the-art research currently being conducted in the broad area of seismic source characterization in the context of nuclear test monitoring.

Dies ist eine hervorragende EinfA1/4hrung in die Teilchenphysik und ebenso ein Repetitorium fA1/4r Studenten im PrA1/4fungssemester und fA1/4r Lehrer an Gymnasien. Der Autor, der als Forscher wesentliche Entwicklungen der Teilchenphysik begleitet hat und der als herausragender Lehrer gilt, wAhlt die Geschichte der Teilchenphysik als roten Faden. Die Begriffe und die Theorien werden in groAer Klarheit prAsentiert, und die Experimente werden herangezogen, um Erfolg und Misserfolg auf dem Weg zum Standardmodell zu illustrieren. Der mathematische Apparat wird klein gehalten, so dass das Buch auch den interessierten Laien in seinen Bann ziehen wird.

An expert and illuminating review of the leading models of nuclear structure: effective field theories based on quantum chromodynamics; ab initio models based on Monte Carlo methods employing effective nucleon-nucleon interactions; diagonalization and the Monto Carlo shell model; non-relativistic and relativistic mean-field theory and its extensions; and symmetry-dictated approaches. Theoretical advances in major areas of nuclear structure are discussed: nuclei far from stability and radioactive ion beams; gamma ray spectroscopy; nuclear astrophysics and electroweak interactions in nuclei; electron scattering; nuclear superconductivity; superheavy elements. The interdisciplinary aspects of the many-body problem are also discussed. Recent experimental data are examined in light of state-of-the-art calculations. Recent advances in several broad areas of theoretical structure are covered, making the book ideal as a supplementary textbook.

Rio de Janeiro, Brazil, September 14-20, 1997

A broad range of topics of current interest are discussed, from nuclear structure at the edge of stability to nuclear astrophysics and cosmic ray physics at the highest energies. Both the state of the art and basic background information are presented with a particular emphasis on interrelated research interests. The writers are all active scientists who enjoy the highest international reputation. They cover a range of problems of nuclear structure, in particular those concerning exotic nuclei and their decay modes, their relevance to nuclear reaction chains in stellar burning processes at various astrophysical sites, and as yet unsolved questions concerning the origin, acceleration mechanism, energy spectrum and elemental composition of high energy cosmic rays. Readership: Postgraduate physicists interested in the development of modern radioactive beam facilities, large array gamma ray and cosmic ray detectors, and new theoretical tools.

On September 1996, the United Nations General Assembly adopted the Comprehensive Nuclear-Test-Ban Treaty (CTBT), prohibiting nuclear explosions worldwide, in all environments. The treaty calls for a global verification system, including a network of 321 monitoring stations distributed around the globe, a data communications network, an international data center (IDC), and on-site inspections to verify compliance. Successful monitoring of a CTBT requires that we detect and identify all nuclear explosions. Since many events of concern will be too small to be detected teleseismically, this capability requires the use of regional-distance seismograms. The complexity of regional seismograms presents many technical challenges for a monitoring program. This issue focuses on problems associated with regional wave propagation through complex media. It includes papers that investigate regional variations of elastic and anelastic properties of Eurasia, the blockage of regional phases by sedimentary basins, methods for modeling regional wave propagation and for calibrating seismic wave paths in order to extract amplitude variations and source parameters. These papers illustrate the research and development necessary for acquiring an understanding of regional wave propagation which in turn provides the foundation for operational tools used to monitor a CTBT.

This book provides an up-to-date account of the precise experiments used to explore the nature of universal gravitation that can be performed in a terrestrial laboratory. The experiments required are at the limits of sensitivity of mechanical measurements. The problems of experiment design are discussed, and critical accounts given of the principal experiments testing the inverse square law and the principle of equivalence, and measuring the constant of gravitation. An analysis of the effects of noise and other disturbances is also provided, further highlighting the care that is needed in experimental design and performance. The motivation for undertaking such experiments is also discussed. The book will be of value to graduate students, researchers and teachers who are engaged in either theoretical or experimental studies of gravitation, and who wish to understand the nature and problems of laboratory experiments in this field.

The interacting boson-fermion model has become in recent years the standard model for the description of atomic nuclei with an odd number of protons and/or neutrons. This book describes the mathematical framework on which the interacting boson-fermion model is built and presents applications to a variety of situations encountered in nuclei. The book addresses both the analytical and the numerical aspects of the problem. The analytical aspect requires the introduction of rather complex group theoretic methods, including the use of graded (or super) Lie algebras. The first (and so far only) example of supersymmetry occurring in nature is also discussed. The book is the first comprehensive treatment of the subject and will appeal to both theoretical and experimental physicists. The large number of explicit formulas for level energies, electromagnetic transition rates and intensities of transfer reactions presented in the book provide a simple but detailed way to analyse experimental data. This book can also be used as a textbook for advanced graduate students.

Fundamentals of Nuclear Physics is a textbook on nuclear physics aimed at undergraduates in their final year, designed to give the student a thorough understanding of the principal features of nuclei, nuclear decays and nuclear reactions. The book covers the elementary concepts of the subject necessary for introductory courses and also explores more advanced topics, suitable for graduate courses. Initially several models are described and used to explain nuclear properties with many illustrative examples. Sections follow on a-, B- and y-decay, fission, thermonuclear fusion, reactions, nuclear forces and nuclear collective motion. In each case many examples are discussed, and the student should gain a thorough grounding in knowledge of the nucleus. The presentation is quantitative and short derivations are given in full to enable the student to make predictions about nuclear phenomena. This book will be of value to all undergraduates studying nuclear physics, as well as to first-year graduates. The level of the presentation bridges the gap between introductory undergraduate and the more advanced graduate textbooks.

Written by a non-statistician for non-statisticians, the book emphasizes the practical approach to those problems in statistics that arise regularly in data analysis situations in nuclear and high energy physics experiments. Rather than concentrate on proofs and theorems, the author provides an abundance of simple examples that illustrate the general ideas presented. This allows the reader to obtain maximum information in the simplest manner. Possible difficulties with the various techniques, and pitfalls to be avoided, are also discussed. This commonsense approach to statistical formalism enables nuclear physicists to better understand how to do justice to their analysis and interpretation of data.

This lively well-illustrated collection of articles written by a group of particle physicists at Los Alamos National Laboratory presents to the expert and non-expert alike a comprehensive overview of the major theoretical and experimental advances of the past twenty years. It explains the emergence of a profoundly new understanding of the fundamental forces of Nature. With the unification of the weak and electromagnetic interaction, physicists now stand at the brink of a complete unification of all the forces, including gravity. This achievement brought with it a rich vocabulary of names and concepts: quarks, gluons and nonabelian gauge theories. The exposition of these ideas, done on a variety of technical levels is designed to interest a broad audience ranging from the professional theorist and experimentalist to the inquisitive student. Anyone with an interest in particle physics can enjoy this book.