Scattering Matrix

Direct and Inverse Scattering for the Matrix Schrödinger Equation  eBooks & eLearning

Posted by AvaxGenius at Jan. 17, 2021
Direct and Inverse Scattering for the Matrix Schrödinger Equation

Direct and Inverse Scattering for the Matrix Schrödinger Equation by Tuncay Aktosun
English | EPUB | 2021 | 631 Pages | ISBN : 3030384306 | 35.3 MB

Authored by two experts in the field who have been long-time collaborators, this monograph treats the scattering and inverse scattering problems for the matrix Schrödinger equation on the half line with the general selfadjoint boundary condition.
Direct and Inverse Scattering for the Matrix Schrödinger Equation (Applied Mathematical Sciences)

Tuncay Aktosun, "Direct and Inverse Scattering for the Matrix Schrödinger Equation (Applied Mathematical Sciences)"
English | ISBN: 3030384306 | 2021 | 637 pages | PDF | 8 MB

Microwave Network Design Using the Scattering Matrix  eBooks & eLearning

Posted by arundhati at July 27, 2019
Microwave Network Design Using the Scattering Matrix

Janusz A. Dobrowolski, "Microwave Network Design Using the Scattering Matrix"
English | ISBN: 1608071294 | 2010 | 269 pages | PDF | 2 MB

Microwave Network Design Using the Scattering Matrix (repost)  eBooks & eLearning

Posted by arundhati at March 20, 2014
Microwave Network Design Using the Scattering Matrix (repost)

Janusz A. Dobrowolski, "Microwave Network Design Using the Scattering Matrix"
2010 | ISBN: 1608071294 | 269 pages | PDF | 2 MB

Microwave Network Design Using the Scattering Matrix  eBooks & eLearning

Posted by tot167 at April 26, 2011
Microwave Network Design Using the Scattering Matrix

Janusz A. Dobrowolski , "Microwave Network Design Using the Scattering Matrix"
Art.ch Ho.se | 2010 | ISBN: 1608071294 | 269 pages | PDF | 2,1 MB

What is the iε for the S-matrix?  eBooks & eLearning

Posted by AvaxGenius at Jan. 3, 2023
What is the iε for the S-matrix?

What is the iε for the S-matrix? by Holmfridur Sigridar Hannesdottir , Sebastian Mizera
English | PDF,EPUB | 2023 | 165 Pages | ISBN : 303118257X | 17.3 MB

This book provides a modern perspective on the analytic structure of scattering amplitudes in quantum field theory, with the goal of understanding and exploiting consequences of unitarity, causality, and locality. It focuses on the question: Can the S-matrix be complexified in a way consistent with causality? The affirmative answer has been well understood since the 1960s, in the case of 2→2 scattering of the lightest particle in theories with a mass gap at low momentum transfer, where the S-matrix is analytic everywhere except at normal-threshold branch cuts. We ask whether an analogous picture extends to realistic theories, such as the Standard Model, that include massless fields, UV/IR divergences, and unstable particles. Especially in the presence of light states running in the loops, the traditional iε prescription for approaching physical regions might break down, because causality requirements for the individual Feynman diagrams can be mutually incompatible. We demonstrate that such analyticity problems are not in contradiction with unitarity. Instead, they should be thought of as finite-width effects that disappear in the idealized 2→2 scattering amplitudes with no unstable particles, but might persist at higher multiplicity. To fix these issues, we propose an iε-like prescription for deforming branch cuts in the space of Mandelstam invariants without modifying the analytic properties of the physical amplitude.

Scattering Matrix Approach to Non-Stationary Quantum Transport  eBooks & eLearning

Posted by arundhati at May 19, 2019
Scattering Matrix Approach to Non-Stationary Quantum Transport

Michael V Moskalets, "Scattering Matrix Approach to Non-Stationary Quantum Transport"
2011 | ISBN-10: 1848168349 | 296 pages | PDF | 2 MB

Scattering Matrix Approach to Non-Stationary Quantum Transport  eBooks & eLearning

Posted by arundhati at Dec. 8, 2015
Scattering Matrix Approach to Non-Stationary Quantum Transport

Michael V Moskalets, "Scattering Matrix Approach to Non-Stationary Quantum Transport"
2011 | ISBN-10: 1848168349 | 296 pages | PDF | 2 MB

Scattering Analysis of Periodic Structures Using Finite-Difference Time-Domain Method  eBooks & eLearning

Posted by AvaxGenius at Oct. 22, 2022
Scattering Analysis of Periodic Structures Using Finite-Difference Time-Domain Method

Scattering Analysis of Periodic Structures Using Finite-Difference Time-Domain Method by Khaled ElMahgoub
English | PDF(True) | 2012 | 142 Pages | ISBN : 160845813X | 4.8 MB

Periodic structures are of great importance in electromagnetics due to their wide range of applications such as frequency selective surfaces (FSS), electromagnetic band gap (EBG) structures, periodic absorbers, meta-materials, and many others. The aim of this book is to develop efficient computational algorithms to analyze the scattering properties of various electromagnetic periodic structures using the finite-difference time-domain periodic boundary condition (FDTD/PBC) method. A new FDTD/PBC-based algorithm is introduced to analyze general skewed grid periodic structures while another algorithm is developed to analyze dispersive periodic structures. Moreover, the proposed algorithms are successfully integrated with the generalized scattering matrix (GSM) technique, identified as the hybrid FDTD-GSM algorithm, to efficiently analyze multilayer periodic structures.
Direct and Inverse Scattering at Fixed Energy for Massless Charged Dirac Fields by Kerr-newman-de Sitter Black Holes

Thierry Daude, Francois Nicoleau, "Direct and Inverse Scattering at Fixed Energy for Massless Charged Dirac Fields by Kerr-newman-de Sitter Black Holes"
English | ISBN: 1470423766 | 2017 | 126 pages | PDF | 1 MB