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Towards infrared finite S-matrix in ...

Hirai, Hayato.

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Towards infrared finite S-matrix in quantum field theory

Record Type:	Electronic resources : Monograph/item
Title/Author:	Towards infrared finite S-matrix in quantum field theory/ by Hayato Hirai.
Author:	Hirai, Hayato.
Published:	Singapore :Springer Singapore : : 2021.,
Description:	xiii, 127 p. :ill., digital ;24 cm.
[NT 15003449]:	Introduction and Summary -- Asymptotic Symmetry -- Infrared Divergences -- Equivalence Between Soft Theorem and Asymptotic Symmetry -- Towards the IR nite S-matrix -- Conclusion and Further Discussion -- Appendix.
Contained By:	Springer Nature eBook
Subject:	S-matrix theory. -
Online resource:	https://doi.org/10.1007/978-981-16-3045-3
ISBN:	9789811630453

Towards infrared finite S-matrix in quantum field theory
Hirai, Hayato.

Towards infrared finite S-matrix in quantum field theory[electronic resource] /by Hayato Hirai. - Singapore :Springer Singapore :2021. - xiii, 127 p. :ill., digital ;24 cm. - Springer theses,2190-5053. - Springer theses..

Introduction and Summary -- Asymptotic Symmetry -- Infrared Divergences -- Equivalence Between Soft Theorem and Asymptotic Symmetry -- Towards the IR nite S-matrix -- Conclusion and Further Discussion -- Appendix.

This book presents the better understanding of infrared structures of particle scattering processes in quantum electrodynamics (QED) in four-dimensional spacetime. An S-matrix is the fundamental quantity in scattering theory. However, if a theory involves massless particles, such as QED and gravity, the conventional S-matrix has not been well defined due to the infrared divergence, and infrared dynamics thus needs to be understood in-depth to figure out the S-matrix. The book begins with introducing fundamental nature of the charge conservation law associated with asymptotic symmetry, and explaining its relations to soft theorems and memory effect. Subsequently it looks into an appropriate asymptotic state of the S-matrix without infrared divergences. The Faddeev-Kulish dressed state is known as a candidate of such a state, and its gauge invariant condition and its relation to the asymptotic symmetry are discussed. It offers an important building blocks for constructing the S-matrix without infrared divergences.

ISBN: 9789811630453

Standard No.: 10.1007/978-981-16-3045-3doiSubjects--Topical Terms:

930584
S-matrix theory.

LC Class. No.: QC174.35.S2 / H57 2021

Dewey Class. No.: 530.12

Towards infrared finite S-matrix in quantum field theory
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100 1 $a Hirai, Hayato. $3 3501494
245 1 0 $a Towards infrared finite S-matrix in quantum field theory $h [electronic resource] / $c by Hayato Hirai.
260 $a Singapore : $b Springer Singapore : $b Imprint: Springer, $c 2021.
300 $a xiii, 127 p. : $b ill., digital ; $c 24 cm.
490 1 $a Springer theses, $x 2190-5053
505 0 $a Introduction and Summary -- Asymptotic Symmetry -- Infrared Divergences -- Equivalence Between Soft Theorem and Asymptotic Symmetry -- Towards the IR nite S-matrix -- Conclusion and Further Discussion -- Appendix.
520 $a This book presents the better understanding of infrared structures of particle scattering processes in quantum electrodynamics (QED) in four-dimensional spacetime. An S-matrix is the fundamental quantity in scattering theory. However, if a theory involves massless particles, such as QED and gravity, the conventional S-matrix has not been well defined due to the infrared divergence, and infrared dynamics thus needs to be understood in-depth to figure out the S-matrix. The book begins with introducing fundamental nature of the charge conservation law associated with asymptotic symmetry, and explaining its relations to soft theorems and memory effect. Subsequently it looks into an appropriate asymptotic state of the S-matrix without infrared divergences. The Faddeev-Kulish dressed state is known as a candidate of such a state, and its gauge invariant condition and its relation to the asymptotic symmetry are discussed. It offers an important building blocks for constructing the S-matrix without infrared divergences.
650 0 $a S-matrix theory. $3 930584
650 0 $a Quantum electrodynamics. $3 519237
650 1 4 $a Elementary Particles, Quantum Field Theory. $3 894026
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950 $a Physics and Astronomy (SpringerNature-11651)