Author

SUNScholar Research Repository

Author

Sort by: Order: Results:

  • Weigel H.   Quandt M.   Graham N. (2012)
    We provide a thorough exposition of recent results on the quantum stabilization of cosmic strings. Stabilization occurs through the coupling to a heavy fermion doublet in a reduced version of the standard model. The study ...
  • Graham N.   Quandt M.   Weigel H. (2011)
    We provide a thorough exposition, including technical and numerical details, of previously published results on the quantum stabilization of cosmic strings. Stabilization occurs through the coupling to a heavy fermion ...
  • Weigel H.   Quandt M. (2010)
    We improve on a method to compute the fermion contribution to the vacuum polarization energy of string-like configurations in a non-Abelian gauge theory. We establish the new method by numerically verifying the invariance ...
  • Weigel H.   Quandt M.   Graham N. (2011)
    We study the quantum stabilization of a cosmic string by a heavy fermion doublet in a reduced version of the standard model. We show that charged strings, obtained by populating fermionic bound state levels, become stable ...