50 citations · 446 across the 38 of their papers we have counts for
39 papers
Canonical Quantization of Teukolsky fields on Kerr Background
Claudio Iuliano, Jochen Zahn
Electromagnetic and gravitational perturbations on Kerr spacetime can be reconstructed from solutions to the Teukolsky equations. We study the canonical quantization of solutions t…
Angular time delay in quantum mechanical scattering
Jochen Zahn
We apply Brunetti and Fredenhagen's [Phys. Rev. A 66 (2002) 044101] concept of the time of occurrence of an event in quantum mechanics to the example of scattering off a spherical…
Background independence and the Adler-Bardeen theorem
Jochen Zahn
We prove that for renormalizable Yang-Mills gauge theory with arbitrary compact gauge group (of at most a single abelian factor) and matter coupling, the absence of gauge anomalies…
The semiclassical energy density of kinks and solitons
Maria Angeles Alberti Martin, Robert Schlesier, Jochen Zahn
We compute semiclassical corrections to the energy density of kinks in theory and of solitons in the sine-Gordon model in dimensions, using local and covariant renormal…
Dynamics of spherical charged dust shells in de Sitter space
Christoph Giese, Jochen Zahn
We study the dynamics of charged, spherically symmetric dust shells in the presence of a positive cosmological constant. We find generalizations of the well-known solutions in asym…
The renormalized charged scalar current in the Reissner-Nordström-de Sitter spacetime
Christiane Klein, Jochen Zahn
We perform a Hadamard point-split renormalization of the current density of a charged scalar field in a Reissner-Nordström-de Sitter spacetime. We compute numerically the exp…