227 citations · 1.4k across the 53 of their papers we have counts for
52 papers
Vacuum Polarization Energy of a Nonzero Radius Cosmic String Induced Spacetime
Noah Graham, Herbert Weigel
We calculate the vacuum polarization energy (VPE) of a scalar field in the background of a nonsingular cosmic string in spacetime dimensions. Our calculation expresses the VP…
Chiral Solitons
Herbert Weigel
Generalizing quantum chromodynamics (QCD) from three to arbitrarily many color degrees of freedom suggests that baryons can be described as solitons in an effective meson theory wh…
Vacuum polarization energy of a complex scalar field in a vortex background
N. Graham, H. Weigel
Scattering methods make it possible to compute the effects of renormalized quantum fluctuations on classical field configurations. As a classic example of a topologically nontrivia…
On the Casimir Energy of Frequency Dependent Interactions
N. Graham, M. Quandt, H. Weigel
Vacuum polarization (or Casimir) energies can be straightforwardly computed from scattering data for static field configurations whose interactions with the fluctuating field are f…
Quantum QED Flux Tubes in 2+1 and 3+1 Dimensions
N. Graham, V. Khemani, M. Quandt +2
We compute energies and energy densities of static electromagnetic flux tubes in three and four spacetime dimensions. Our calculation uses scattering data from the potential induce…
Pentaquarks in a Breathing Mode Approach to Chiral Solitons
H. Weigel
In this talk I report on a computation of the spectra of exotic pentaquarks and radial excitations of the low--lying and baryons in a chiral soliton model. In a…