We're sorry but this page doesn't work properly without JavaScript enabled. Please enable it to continue.
Feedback

The infrared problems in QED: Some topics of current research

Formal Metadata

Title
The infrared problems in QED: Some topics of current research
Alternative Title
Infrared problems in QED: Some topics of current research
Title of Series
Number of Parts
15
Author
License
CC Attribution - NonCommercial - NoDerivatives 4.0 International:
You are free to use, copy, distribute and transmit the work or content in unchanged form for any legal and non-commercial purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
Identifiers
Publisher
Release Date
Language

Content Metadata

Subject Area
Genre
Abstract
I will discuss some recent progress on infrared problems in non-perturbative approaches to QED. First, I will explain the general distinction between the `infraparticle’ and `infravacuum’ picture of the electron which pertains to the existence resp. non-existence of the spacelike asymptotic flux of the electric field. On this basis the problem of electron-photon scattering will be discussed both in models of non-relativistic QED and in the setting of algebraic QED. On the infraparticle side, we will revisit the Faddeev-Kulish approach, theory of particle weights and the problem of velocity superselection. On the infravacuum side the talk will cover Kraus-Polley- Reents representations and the Buchholz-Roberts approach. If time allows, relations to a current trend in high-energy physics triggered by the works of A. Strominger et al. on the Weinberg's soft-photon theorems will be discussed. (Joint work with A. Pizzo)