Franklin

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

Author/Creator:
Hirai, Hayato, author.
Publication:
Singapore : Springer, [2021]
Format/Description:
Book
1 online resource (134 pages) : illustrations (chiefly color).
Series:
Springer theses
Springer theses
Status/Location:
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Details

Subjects:
S-matrix theory.
Quantum electrodynamics.
Form/Genre:
Electronic books.
Electronic books.
System Details:
text file PDF
Summary:
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.
Contents:
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. .
Notes:
"Doctoral thesis accepted by Osaka University, Osaka, Japan."
Includes bibliographical references.
Description based upon print version of record.
Other format:
Print version: Hirai, Hayato Towards Infrared Finite S-Matrix in Quantum Field Theory
ISBN:
9789811630453
9811630453
9789811630446
9811630445
OCLC:
1261364593
Publisher Number:
10.1007/978-981-16-3045-3 doi
Access Restriction:
Restricted for use by site license.