Libros de Física, página 24 de 362

A decade after it was first published, this book remains the best textbook in this exciting field. This 10th anniversary edition includes an introduction from the authors setting the work in context. Containing a wealth of figures and exercises, it is ideal for courses on the subject.

This book provides a working knowledge of those parts of exterior differential forms, differential geometry, algebraic and differential topology, Lie groups, vector bundles and Chern forms that are essential for a deeper understanding of both classical and modern physics and engineering. Included are discussions of analytical and fluid dynamics, electromagnetism (in flat and curved space), thermodynamics, the deformation tensors of elasticity, soap films, special and general relativity, the Dirac operator and spinors, and gauge fields, including Yang-Mills, the Aharonov-Bohm effect, Berry phase, and instanton winding numbers, quarks, and quark model for mesons. Before discussing abstract notions of differential geometry, geometric intuition is developed through a rather extensive introduction to the study of surfaces in ordinary space; consequently, the book should be of interest also to mathematics students. Ideal for graduate and advanced undergraduate students of physics, engineering and mathematics as a course text or for self study.

This book provides a survey of the current state of research into the physics of neutrinos. It is presented in a form accessible to non-specialists and graduate students, but will also be useful as a handbook for researchers in this field. The reader finds here a global view of the areas of physics in which neutrinos play important roles, including astrophysics and cosmology. The book is intended to be self-contained: Starting from the standard theory of electroweak interactions, the key notions are explained in detail and the fundamental equations are derived explicitly, so that readers can understand their precise content. Prime emphasis is given to the mass of neutrinos and its implications. The first eight chapters deal mostly with well-established knowledge whilst later chapters probe into research problems.

This advanced text develops first the underlying concepts of quantum mechanics, thus starting with state spaces of finite dimension followed by the representation of coordinates with their principal formal elements, and their applications such as the harmonic oscillator, magnetic momentum, the hydrogen atom, stationary perturbations etc. This fresh and original text on quantum mechanics focuses on: the development of numerical methods for obtaining specific results; the presentation of group theory and the systematic use of operators; the introduction of the functional integral and its applications in approximation; the discussion of distant correlations and experimental measurements. Numerous exercises with hints and solutions, examples and applications, and a guide to key references help the student to work with the text.

The only graduate-level textbook on quantum field theory that fully integrates perspectives from high-energy, condensed-matter, and statistical physicsQuantum field theory was originally developed to describe quantum electrodynamics and other fundamental problems in high-energy physics, but today has become an invaluable conceptual and mathematical framework for addressing problems across physics, including in condensed-matter and statistical physics. With this expansion of applications has come a new and deeper understanding of quantum field theory-yet this perspective is still rarely reflected in teaching and textbooks on the subject. Developed from a year-long graduate course Eduardo Fradkin has taught for years to students of high-energy, condensed-matter, and statistical physics, this comprehensive textbook provides a fully "multicultural" approach to quantum field theory, covering the full breadth of its applications in one volume.Brings together perspectives from high-energy, condensed-matter, and statistical physics in both the main text and exercisesTakes students from basic techniques to the frontiers of physicsPays special attention to the relation between measurements and propagators and the computation of cross sections and response functionsFocuses on renormalization and the renormalization group, with an emphasis on fixed points, scale invariance, and their role in quantum field theory and phase transitionsOther topics include non-perturbative phenomena, anomalies, and conformal invarianceFeatures numerous examples and extensive problem setsAlso serves as an invaluable resource for researchers

Con un estilo moderno, esta obra cubre todos los temas esenciales de la física. Los autores buscaron ser concisos y enfocarse en los conceptos centrales; es decir, ponderaron la brevedad para no abrumar a los lectores con textos largos, confusos e incluso tediosos. De acuerdo con las ingenierias y las ciencias de hoy en dia, este texto hace enfasis en la estructura atomica, lo anterior acompañado de multiples ejemplos y situaciones reales, que lo convierten en una obra idonea para la ingenieria moderna. La pedagogia es amplia, contiene gran cantidad de recursos como resumenes, preguntas, problemas sobre tecnologia, ciencia, deportes

Henrik Bruus; Karsten FlensbergThis book is an introduction to the techniques of many-body quantum theory with a large number of applications to condensed matter physics. The basic idea of the book is to provide a self-contained formulation of the theoretical framework without losing mathematical rigor, while at the same time providing physical motivation and examples. The examples are taken from applications in electron systems and transport theory. On the formal side, the book covers an introduction to second quantization, many-body Green's function, finite temperature Feynman diagrams and bosonization. The applications include traditional transport theory in bulk as well as mesoscopic systems, where both the Landau-Buttiker formalism and recent developments in correlated transport phenomena in mesoscopic systems and nano-structures are covered. Other topics include interacting electron gases, plasmons, electron-phonon interactions, superconductivity and a final chapter on one-dimensional systems where a detailed treatment of Luttinger liquid theory and bosonization techniques is given. Having grown out of a set of lecture notes, and containing many pedagogical exercises, this book is designed as a textbook for an advanced undergraduate or graduate course, and is also well suited for self-study.

Jean Zinn-JustinThe main goal of this book is to familiarize the reader with a tool, the path integral, that not only offers an alternative point of view on quantum mechanics, but more importantly, under a generalized form, has also become the key to a deeper understanding of quantum field theory and its applications, extending from particle physics to phase transitions or properties of quantum gases. Path integrals are mathematical objects that can be considered as generalizations to an infinite number of variables, represented by paths, of usual integrals. They share the algebraic properties of usual integrals, but have new properties from the viewpoint of analysis. They are powerful tools for the study of quantum mechanics, since they emphasize very explicitly the correspondence between classical and quantum mechanics. Physical quantities are expressed as averages over all possible paths but, in the semi-classical limit, the leading contributions come from paths close to classical paths. Thus, path integrals lead to an intuitive understanding of physical quantities in the semi-classical limit, as well as simple calculations of such quantities. This observation can be illustrated with scattering processes, spectral properties or barrier penetration effects. Even though the formulation of quantum mechanics based on path integrals seems mathematically more complicated than the usual formulation based on partial differential equations, the path integral formulation is well adapted to systems with many degrees of freedom, where a formalism of Schrodinger type is much less useful. It allows simple construction of a many-body theory both for bosons and fermions.1. Gaussian integrals; 2. Path integral in quantum mechanics; 3. Partition function and spectrum; 4. Classical and quantum statistical physics; 5. Path integrals and quantization; 6. Path integral and holomorphic formalism; 7. Path integrals: fermions; 8. Barrier penetration: semi-classical approximation; 9. Quantum evolution and scattering matrix; 10. Path integrals in phase space; Quantum mechanics: minimal background; A1. Hilbert space and operators; A2. Quantum evolution, symmetries and density matrix; A3. Position and momentum. Scrodinger equationJean Zinn-JustinHead of Dapnia/DSM/CEA-Saclay, France `... an exceptionally clear and thorough book ... should be about as good a book on the subject as one could imagine.

This textbook establishes a theoretical framework for understanding deep learning models of practical relevance With an approach that borrows from theoretical physics Roberts and Yaida provide clear and pedagogical explanations of how realistic deep neural networks actually work To make results from the theoretical forefront accessible the authors eschew the subject s traditional emphasis on intimidating formality without sacrificing accuracy Straightforward and approachable this volume balances detailed first principle derivations of novel results with insight and intuition for theorists and practitioners alike This self contained textbook is ideal for students and researchers interested in artificial intelligence with minimal prerequisites of linear algebra calculus and informal probability theory and it can easily fill a semester long course on deep learning theory For the first time the exciting practical advances in modern artificial intelligence capabilities can be matched with a set of effective principles providing a timeless blueprint for theoretical research in deep learning