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Author: Nussenzveig
Publisher: Academic Press
ISBN: 0080956041
Category : Mathematics
Languages : en
Pages : 434
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Book Description
Causality and Dispersion Relations
Author: Nussenzveig
Publisher: Academic Press
ISBN: 0080956041
Category : Mathematics
Languages : en
Pages : 434
Get Book
Book Description
Causality and Dispersion Relations
Author: H. M. Nussenzweig
Publisher:
ISBN:
Category :
Languages : en
Pages : 435
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Book Description
Author: Jan Hilgevoord
Publisher:
ISBN:
Category : Causation
Languages : en
Pages : 156
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Book Description
Author: José Antonio Oller
Publisher: Springer
ISBN: 3030135829
Category : Science
Languages : en
Pages : 141
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Book Description
This text offers a brief introduction to the dispersion relations as an approach to calculate S-matrix elements, a formalism that allows one to take advantage of the analytical structure of scattering amplitudes following the basic principles of unitarity and causality. First, the case of two-body scattering is considered and then its contribution to other processes through final-state interactions is discussed. For two-body scattering amplitudes, the general expression for a partial-wave amplitude is derived in the approximation where the crossed channel dynamics is neglected. This is taken as the starting point for many interesting nonperturbative applications, both in the light and heavy quark sector. Subsequently crossed channel dynamics is introduced within the equations for calculating the partial-wave amplitudes. Some applications based on methods that treat crossed-channel dynamics perturbatively are discussed too. The last part of this introductory treatment is dedicated to the further impact of scattering amplitudes on a variety of processes through final-state interactions. Several possible approaches are discussed such as the Muskhelishvili-Omnes dispersive integral equations and other closed formulae. These different formalisms are then applied in particular to the study of resonances presenting a number of challenging properties. The book ends with a chapter illustrating the use of dispersion relations in the nuclear medium for the evaluation of the energy density in nuclear matter.
Author: Eugene Paul Wigner
Publisher:
ISBN:
Category : Dispersion relations
Languages : en
Pages : 0
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Book Description
Author: Vladimir Pascalutsa
Publisher: Morgan & Claypool Publishers
ISBN: 168174919X
Category : Science
Languages : en
Pages : 84
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Book Description
Scattering of light by light is a fundamental process arising at the quantum level through vacuum fluctuations. This short book will explain how, remarkably enough, this quantum process can entirely be described in terms classical quantities. This description is derived from general principles, such as causality, unitarity, Lorentz, and gauge symmetries. The reader will be introduced into a rigorous formulation of these fundamental concepts, as well as their physical interpretation and applications.
Author: Pascalutsa Vladimir
Publisher:
ISBN: 9781681749181
Category :
Languages : en
Pages : 0
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Book Description
Author: Jan Hilgevoord
Publisher:
ISBN:
Category : Dispersion
Languages : en
Pages : 0
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Book Description
Author: Mathias Frisch
Publisher: Cambridge University Press
ISBN: 1107031494
Category : Mathematics
Languages : en
Pages : 265
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Book Description
This book argues, partly through detailed case studies, for the importance of causal reasoning in physics.
Author: Emil Wolf
Publisher: World Scientific
ISBN: 9810242042
Category : Science
Languages : en
Pages : 673
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Book Description
This invaluable book presents most of the important papers of Emil Wolf, published over half-a-century. It covers chiefly diffraction theory (especially the analysis of the focal region), the theory of direct and inverse scattering, phase-space methods in quantum mechanics, the foundation of radiometry, phase conjugation and coherence theory. Several papers which have become classics of the optical literature are included, such as those on Wolf's rigorous formulation of the theory of partial coherence and partial polarization, the introduction of diffraction tomography, and his discovery of correlation-induced shifts of spectral lines (often called the Wolf effect). There are also papers dealing with the historical development of optics and some review articles.
