11 citations · 16 across the 5 of their papers we have counts for
13 papers
Images in Christmas Balls
Eef van Beveren, Frieder Kleefeld, George Rupp
We describe light-reflection properties of spherically curved mirrors, like balls in the Christmas tree. In particular, we study the position of the image which is formed somewhere…
Non-Hermitian Quantum Theory and its Holomorphic Representation: Introduction and Applications
F. Kleefeld
This article contains a short summary of an oral presentation in the 2nd International Workshop on "Pseudo-Hermitian Hamiltonians in Quantum Physics" (14.-16.6.2004, Villa Lanna, P…
Non-Hermitian Quantum Theory and its Holomorphic Representation: Introduction and Some Applications
F. Kleefeld
Present Hermitian Quantum Theory, i.e. Quantum Mechanics and Quantum Field Theory, is revised and replaced by a consistent non-Hermitian formalism called non-Hermitian Quantum Theo…
Is a quantum theory of resonances really time asymmetric?
F. Kleefeld
The title "Time Asymmetric Quantum Theory: the Theory of Resonances" (without questionmark) of the CFIF workshop (23.-26.7.2003, Lisbon, Portugal) implies that the theoretical desc…
Does it make any sense to talk about a Delta-isobar?
F. Kleefeld
It is shortly investigated, on what basis an experimentally observed resonance like the Delta(1232)-isobar can be embedded into the framework of Quantum Theory (QT), i.e. Quantum F…
ISI and FSI in NN-->NNX reactions
F. Kleefeld
The present status of the theoretical description of Initial (ISI) and Final State Interactions (FSI) in nucleon induced exclusive meson production processes close to threshold is…