Libros de Física, página 31 de 362

Quantum computation and information is a new, rapidly developing interdisciplinary field. Therefore, it is not easy to understand its fundamental concepts and central results without facing numerous technical details. This book provides the reader a useful and not-too-heavy guide. It offers a simple and self-contained introduction; no previous knowledge of quantum mechanics or classical computation is required. Volume I may be used as a textbook for a one-semester introductory course in quantum information and computation, both for upper-level undergraduate students and for graduate students. It contains a large number of solved exercises, which are an essential complement to the text, as they will help the student to become familiar with the subject. The book may also be useful as general education for readers who want to know the fundamental principles of quantum information and computation and who have the basic background acquired from their undergraduate course in physics, mathematics, or computer science.

Éste es el tercer tomo del Curso de Física de Berkeley y su principal objetivo es el de desarrollar, de forma comprensible, los conceptos ondulatorios básicos y sus íntimas relaciones. Con este propósito, el libro esta organizado en terminos de estos conceptos en lugar de estarlo segun fenomenos naturales observables, tales como sonido, luz y ...Este es el tercer tomo delCurso de Fisica de Berkeley y su principal objetivo es el de desarrollar, de forma comprensible, los conceptos ondulatorios basicos y sus intimas relaciones. Con este proposito, el libro esta organizado en terminos de estos conceptos en lugar de estarlo segun fenomenos naturales observables, tales como sonido, luz y otros.

Esta obra en dos volúmenes, de venta independiente,ofrece una introducción a la física basadaen cálculo. Es por ello herramienta fundamentalpara el estudiante de Grados de Ingeniería querequiera una base solida en Fisica.Esta tercera edicion es resultado de mas de 25años de pruebas y revisiones continuas. Cadacapitulo se completa con una seccion de problemasbreves y otra de tareas, finalizando conlas respuestas a los ejercicios propuestos a lolargo del texto.

Quantum mechanics is our most successful physical theory. However, it raises conceptual issues that have perplexed physicists and philosophers of science for decades. This book develops a new approach, based on the proposal that quantum theory is not a complete, final theory, but is in fact an emergent phenomenon arising from a deeper level of dynamics. The dynamics at this deeper level are taken to be an extension of classical dynamics to non-commuting matrix variables, with cyclic permutation inside a trace used as the basic calculational tool. With plausible assumptions, quantum theory is shown to emerge as the statistical thermodynamics of this underlying theory, with the canonical commutation/anticommutation relations derived from a generalized equipartition theorem. Brownian motion corrections to this thermodynamics are argued to lead to state vector reduction and to the probabilistic interpretation of quantum theory, making contact with recent phenomenological proposals for stochastic modifications to Schrodinger dynamics.

La octava edición de este reconocido clásico permite a los estudiantes obtener un entendimiento claro de los fundamentos de la termodinámica. Este libro se comunica, de una manera sencilla y precisa, directamente con los ingenieros del mañana, y busca alentar en ellos el pensamiento creativo y la imaginacion.Caracteristicas de la octava edicion:Una introduccion, al inicio del texto, de la primera ley de la termodinamica, con lo que se busca una compresion general de la energia, los mecanismos de transferencia de energia, el concepto de balance de energia, asi como de la economia y de la eficiencia de la conversion.Mas de 900 problemas nuevos y revisados, que amplian el extenso y diverso conjunto de problemas presentando en ediciones anteriorres.Intuicion fisica para ayudar a los estudiantes a desarrollar un entendimiento de los mecanismos fisicos subyacentes y una destreza en la resolucion de problemas practicos que los ingenieros seguramente enfrentaran durante su desempeño profesional.Energia renovable, un nuevo capitulo disponible en el Centro de Recursos en Linea de este libro:www.mh...

The intriguing mechanism of spontaneous symmetry breaking is a powerful innovative idea at the basis of most of the recent developments in theoretical physics, from statistical mechanics to many-body theory to elementary particles theory; for infinitely extended systems a symmetric Hamiltonian can account for non symmetric behaviours, giving rise to non symmetric realizations of a physical system.In the first part of this book, devoted to classical field theory, such a mechanism is explained in terms of the occurrence of disjoint sectors and their stability properties and of an improved version of the Noether theorem.For infinitely extended quantum systems, discussed in the second part, the mechanism is related to the occurrence of disjoint pure phases and characterized by a symmetry breaking order parameter, for which non perturbative criteria are discussed, following Wightman, and contrasted with the standard Goldstone perturbative strategy. The Goldstone theorem is discussed with a critical look at the hypotheses that emphasizes the crucial role of the dynamical delocalization induced by the interaction range.The Higgs mechanism in local gauges is explained in terms of the Gauss law constraint on the physical states. The mathematical details are kept to the minimum required to make the book accessible to students with basic knowledge of Hilbert space structures. Much of the material has not appeared in other textbooks.

Con el objetivo de reflejar las nuevas investigaciones y los métodos de enseñanza de la física más recientes, esta edición ha sido actualizada completamente. Los cambios varían de la inclusión de elementos recien descubiertos en la tabla periodica a la adicion de ejercicios nuevos en cada capitulo.