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Asymptotic structure of electrodynamics revisited

- A. Herdegen
- Physics
- 14 April 2016

We point out that recently published analyses of null and timelike infinity and long-range structures in electrodynamics to large extent rediscover results present in the literature. At the same… Expand

Long‐range effects in asymptotic fields and angular momentum of classical field electrodynamics

- A. Herdegen
- Physics
- 1 August 1995

Asymptotic properties of classical field electrodynamics are considered. Special attention is paid to the long‐range structure of the electromagnetic field. It is shown that conserved Poincare… Expand

Semidirect product of CCR and CAR algebras and asymptotic states in quantum electrodynamics

- A. Herdegen
- Mathematics, Physics
- 10 November 1997

A C*-algebra containing the CCR and CAR algebras as its subalgebras and naturally described as the semidirect product of these algebras is discussed. A particular example of this structure is… Expand

Infraparticle Problem, Asymptotic Fields and Haag–Ruelle Theory

- A. Herdegen
- Physics
- 5 October 2012

In this article, we want to argue that an appropriate generalization of the Wigner concepts may lead to an asymptotic particle with well-defined mass, although no mass hyperboloid in the… Expand

Infrared limit in external field scattering

- A. Herdegen
- Physics
- 20 February 2012

Scattering of electrons/positrons by external classical electromagnetic wave packet is considered in infrared limit. In this limit, the scattering operator exists and produces physical effects,… Expand

Massless Asymptotic Fields and Haag–Ruelle Theory

- P. Duch, A. Herdegen
- Mathematics, Physics
- 28 October 2014

We revisit the problem of the existence of asymptotic massless boson fields in quantum field theory. The well-known construction of such fields by Buchholz (Commun. Math. Phys. 52:147–173, 1977;… Expand

Is Einstein's equivalence principle valid for a quantum particle?

- A. Herdegen, J. Wawrzycki
- Physics
- 3 October 2001

Einstein's equivalence principle in classical physics is a rule stating that the effect of gravitation is locally equivalent to the acceleration of an observer. The principle determines the motion of… Expand

Infrared Problem vs Gauge Choice: Scattering of Classical Dirac Field

- A. Herdegen
- Mathematics
- 28 December 2020

We consider the Dirac equation for the classical spinor field placed in an external, time-dependent electromagnetic field of the form typical for scattering settings:… Expand

Infrared Problem and Spatially Local Observables in Electrodynamics

- A. Herdegen
- Mathematics, Physics
- 2 October 2007

Abstract.An algebra previously proposed as an asymptotic field structure in electrodynamics is considered in respect of localization properties of fields. Fields are ‘spatially local’ – localized in… Expand

Electromagnetic Gauge Choice for Scattering of Schrödinger Particle

- A. Herdegen
- PhysicsAnnales Henri Poincaré
- 10 September 2019

<jats:p>We consider a Schrödinger particle placed in an external electromagnetic field of the form typical for scattering settings in the field theory:… Expand

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