Cancellation of ultraviolet divergences for locally flat metrics

HORTACSU M., Ozdemir N.

MODERN PHYSICS LETTERS A, vol.13, no.38, pp.3081-3090, 1998 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 13 Issue: 38
  • Publication Date: 1998
  • Doi Number: 10.1142/s0217732398003284
  • Title of Journal : MODERN PHYSICS LETTERS A
  • Page Numbers: pp.3081-3090


We extend the work done for cosmic strings on the perturbative calculation of vacuum polarization of a massless field in the space-time of multiple cosmic strings and show that for a more general class of locally flat metrics, the one-loop calculation does not introduce any new divergences to the vev of the energy of a scalar particle or a spinor particle.