activity
20112023
most citedGreen Operators in Low Regularity Spacetimes and Quantum Field Theory

4 citations · 4 across the 6 of their papers we have counts for

collaborators

6 papers

quant-ph2023

Spin interaction of non-relativistic neutrons with an ultrashort laser pulse

Peter Christian Aichelburg, Christian Spreitzer

The non-relativistic Pauli equation is used to study the interaction of slow neutrons with a short magnetic pulse. In the extreme limit, the pulse is acting on the magnetic moment…

math-ph2022

Modeling Schrödinger equation diffraction with generalized function potentials and initial values

Günther Hörmann, Ljubica Oparnica, Christian Spreitzer

We discuss spectral properties of a regularization approach to a Schrödinger equation set-up for the diffraction of a quantum particle at almost planar patterns. Physically meaning…

gr-qc2019★ 4 cited

Green Operators in Low Regularity Spacetimes and Quantum Field Theory

Guenther Hoermann, Yafet Sanchez Sanchez, Christian Spreitzer +1

In this paper we develop the mathematics required in order to provide a description of the observables for quantum fields on low-regularity spacetimes. In particular we consider th…

math-ph2017

Generalized solutions and distributional shadows for Dirac equations

Guenther Hoermann, Christian Spreitzer

We discuss the application of recent results on generalized solutions to the Cauchy problem for hyperbolic systems to Dirac equations with external fields. In further analysis we f…

math.AP2012

Wave equations and symmetric first-order systems in case of low regularity

Clemens Hanel, Günther Hörmann, Christian Spreitzer +1

We analyse an algorithm of transition between Cauchy problems for second-order wave equations and first-order symmetric hyperbolic systems in case the coefficients as well as the d…

math.AP2011

Symmetric hyperbolic systems in algebras of generalized functions and distributional limits

Guenther Hoermann, Christian Spreitzer

We study existence, uniqueness, and distributional aspects of generalized solutions to the Cauchy problem for first-order symmetric (or Hermitian) hyperbolic systems of partial dif…