178 citations · 275 across the 6 of their papers we have counts for
6 papers
Quantum stabilization of Z-strings, a status report on D=3+1 dimensions
O. Schroeder, N. Graham, M. Quandt +1
We investigate an extension to the phase shift formalism for calculating one-loop determinants. This extension is motivated by requirements of the computation of Z-string quantum e…
Large orders in strong-field QED
Thomas Heinzl, Oliver Schroeder
We address the issue of large-order expansions in strong-field QED. Our approach is based on the one-loop effective action encoded in the associated photon polarisation tensor. We…
Quantum stabilization of Z-strings in the electroweak model
Oliver Schroeder
We study the quantum energy of the Z-string in 2+1 dimensions using the phase shift formalism. Our main interest is the question of stability of a Z-string carrying a finite fermio…
The Casimir Energy for a Hyperboloid Facing a Plate in the Optical Approximation
O. Schroeder, A. Scardicchio, R. L. Jaffe
We study the Casimir energy of a massless scalar field that obeys Dirichlet boundary conditions on a hyperboloid facing a plate. We use the optical approximation including the firs…
The Dirichlet Casimir Problem
N. Graham, R. L. Jaffe, V. Khemani +3
Casimir forces are conventionally computed by analyzing the effects of boundary conditions on a fluctuating quantum field. Although this analysis provides a clean and calculational…
Generalized Random Phase Approximation and Gauge Theories
Oliver Schroeder, Hugo Reinhardt
Mean-field treatments of Yang-Mills theory face the problem of how to treat the Gauss law constraint. In this paper we try to face this problem by studying the excited states inste…