Molecular Quantum Electrodynamics

Spontaneous emission is one of the most striking examples of the difference in viewpoint and method of quantum electrodynamics compared with the semi - classical theory , in which it is not easily understood .

Author: D. P. Craig

Publisher: Courier Corporation

ISBN: 9780486402147

Category: Science

Page: 324

View: 941

Self-contained, systematic introduction examines application of quantum electrodynamics to interpretation of optical experiments on atoms and molecules and explains the quantum theory of electromagnetic radiation and its interaction with matter.

Quantum Electrodynamics

Quantum electrodynamics. Oxford: Elsevier; 1982. [2] Bjorken JD, Drell SD. Relativistic quantum mechanics. New York: McGraw–Hill; 1964. [3] Blumenson LE. A derivation of n-dimensional spherical coordinates. Am Math Mon. 1960;67:63.

Author: Eugene Stefanovich

Publisher: Walter de Gruyter GmbH & Co KG

ISBN: 3110491435

Category: Science

Page: 214

View: 474

This second volume of three on relativistic quantum theories of interacting charged particles discusses quantum theories of systems with variable numbers of particles. Basics of the Fock space and quantum electrodynamics are covered with an emphasis on renormalization. In contrast to the usual treatment of the topic, particles (rather than fields) are chosen as basic ingredients. Contents Fock space Scattering in Fock space Quantum electrodynamics Renormalization Useful integrals Quantum fields of fermions Quantum field of photons QED interaction in terms of particle operators Relativistic invariance of QFT Loop integrals in QED Scattering matrix in (v/c)2 approximation Checks of physical dimensions

Finite Quantum Electrodynamics

Scharf, G. (Günter), 1938Finite quantum electrodynamics: the causal approach / G. Scharf. – 2nd ed. p. cm. - (Texts and monographs in physics) Includes bibliographical references and index.

Author: G. Scharf

Publisher: Springer

ISBN: 3642577504

Category: Science

Page: 410

View: 731

In this textbook for graduate students in physics the author carefully analyses the role of causality in Q.E.D. This new approach avoids ultraviolet divergences, so that the detailed calculations of scattering processes and proofs can be carried out in a mathematically rigorous manner. Significant themes such as renormalizability, gauge invariance, unitarity, renormalization group, interacting fields and axial anomalies are discussed. The extension of the methods to non-abelian gauge theories is briefly described. The book differs considerably from its first edition: Chap. 3 on Causal Perturbation Theory was completely rewritten and Chap. 4 on Properties of the S-Matrix and Chap. 5 on Other Electromagnetic Couplings are new.

Finite Quantum Electrodynamics

Kyoto 2, 101 (1947)) was closest to the older quantum field theory, because he started from the Schrödinger picture, went over to the Heisenberg picture and established perturbation theory. Schwinger (Phys.Rev. 74, 1439 (1948), 75, ...

Author: Gunter Scharf

Publisher: Courier Corporation

ISBN: 048678228X

Category: Science

Page: 432

View: 398

The third edition of this classic graduate-level physics text covers relativistic quantum mechanics, field quantization, causal perturbation theory, properties of the S-matrix, and considerations of other electromagnetic couplings. 2013 edition.

Quantum Field Theory II Quantum Electrodynamics

Quantum Electrodynamics (QED) 10. Creation and Annihilation Operators . ... 784 10.4 The Main Strategy of Quantum Electrodynamics . ........ 788 11. ... The Free Quantum Fields of Electrons, Positrons, and Photons .

Author: Eberhard Zeidler

Publisher: Springer Science & Business Media

ISBN: 3540853774

Category: Mathematics

Page: 1101

View: 203

And God said, Let there be light; and there was light. Genesis 1,3 Light is not only the basis of our biological existence, but also an essential source of our knowledge about the physical laws of nature, ranging from the seventeenth century geometrical optics up to the twentieth century theory of general relativity and quantum electrodynamics. Folklore Don’t give us numbers: give us insight! A contemporary natural scientist to a mathematician The present book is the second volume of a comprehensive introduction to themathematicalandphysicalaspectsofmodernquantum?eldtheorywhich comprehends the following six volumes: Volume I: Basics in Mathematics and Physics Volume II: Quantum Electrodynamics Volume III: Gauge Theory Volume IV: Quantum Mathematics Volume V: The Physics of the Standard Model Volume VI: Quantum Gravitation and String Theory. It is our goal to build a bridge between mathematicians and physicists based on the challenging question about the fundamental forces in • macrocosmos (the universe) and • microcosmos (the world of elementary particles). The six volumes address a broad audience of readers, including both und- graduate and graduate students, as well as experienced scientists who want to become familiar with quantum ?eld theory, which is a fascinating topic in modern mathematics and physics.

Classical and Quantum Electrodynamics and the B 3 Field

Therefore the precision of quantum electrodynamics will have to be increased substantially before we can observe these minute effects . The current precision of quantum electrodynamics ( QED ) cannot be used to assert , as has ...

Author: Myron Wyn Evans

Publisher: World Scientific

ISBN: 9789812811905

Category: Science

Page: 472

View: 100

It is well known that classical electrodynamics is riddled with internal inconsistencies springing from the fact that it is a linear, Abelian theory in which the potentials are unphysical. This volume offers a self-consistent hypothesis which removes some of these problems, as well as builds a framework on which linear and nonlinear optics are treated as a non-Abelian gauge field theory based on the emergence of the fundamental magnetizing field of radiation, the B(3) field. Contents: Interaction of Electromagnetic Radiation with One Fermion; The Field Equations of Classical O (3) b Electrodynamics; Origin of Electrodynamics in the General Theory of Gauge Fields; Nonlinear Propagation in O (3) b Electrodynamics: Solitons and Instantons; Physical Phase Effects in O (3) b Electrodynamics; Quantum Electrodynamics and the B (3) Field; Quantum Chaos, Topological Indices and Gauge Theories; Field Theory of O (3) b QED and Unification with Weak and Nuclear Interactions; Potential Applications of O (3) b QED; Duality and Fundamental Problems. Readership: Graduate and undergraduates in physics (electromagnetism), differential geometry & topology, electrical & electronic engineering, theoretical & physical chemistry, chaos and dynamical systems.


Despite quantum chromodynamics , the dispersion - relation method remains one of the most reliable computational methods in field theory , and it continues to generate successful explanations of experimental data .

Author: ISAEV

Publisher: Springer Science & Business Media

ISBN: 9780883186022

Category: Science

Page: 263

View: 388

Quantum Electrodynamics of Strong Fields

With an Introduction into Modern Relativistic Quantum Mechanics Walter Greiner, B. Müller, J. Rafelski ... processes of relativistic electrons on nuclei and quantum electrodynamical processes requires knowing the continuum spinors.

Author: Walter Greiner

Publisher: Springer Science & Business Media

ISBN: 364282272X

Category: Science

Page: 596

View: 535

The fundamental goal of physics is an understanding of the forces of nature in their simplest and most general terms. Yet there is much more involved than just a basic set of equations which eventually has to be solved when applied to specific problems. We have learned in recent years that the structure of the ground state of field theories (with which we are generally concerned) plays an equally funda mental role as the equations of motion themselves. Heisenberg was probably the first to recognize that the ground state, the vacuum, could acquire certain prop erties (quantum numbers) when he devised a theory of ferromagnetism. Since then, many more such examples are known in solid state physics, e. g. supercon ductivity, superfluidity, in fact all problems concerned with phase transitions of many-body systems, which are often summarized under the name synergetics. Inspired by the experimental observation that also fundamental symmetries, such as parity or chiral symmetry, may be violated in nature, it has become wide ly accepted that the same field theory may be based on different vacua. Practical ly all these different field phases have the status of more or less hypothetical models, not (yet) directly accessible to experiments. There is one magnificent ex ception and this is the change of the ground state (vacuum) of the electron-posi tron field in superstrong electric fields.

Nuclear Science Abstracts

interactions et + e - e * + e * at 1.4 to 2.4 GeVin colliding beams , test of quantum electrodynamics from cross sections of , ( E ) , 25 : 41058 ( LNF - 71 / 13 ) interactions et + ee * + e- at 1.5 to 2.4 GeV , cross sections for ...




Category: Nuclear energy


View: 931

The Conceptual Framework of Quantum Field Theory

A comprehensive (and comprehensible) account of the history of quantum field theory from the Dreimännerarbeit of 1925 to Dyson's renormalization analysis of 1949, effectively completing the formal framework of perturbative quantum ...

Author: Anthony Duncan

Publisher: Oxford University Press

ISBN: 0199573263

Category: Science

Page: 782

View: 603

The book provides a step by step construction of the framework of relativistic quantum field theory, starting from a minimal set of basic foundational postulates. The emphasis is on a careful and detailed description of the conceptual subtleties of modern field theory, many of which are glossed over in other texts.