Spurious effects in perturbative calculations

Hortacsu M., Lutfuoglu B.

GENERAL RELATIVITY AND GRAVITATION, vol.31, no.3, pp.391-403, 1999 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 31 Issue: 3
  • Publication Date: 1999
  • Doi Number: 10.1023/a:1026648929124
  • Journal Name: GENERAL RELATIVITY AND GRAVITATION
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.391-403
  • Istanbul Technical University Affiliated: No

Abstract

We show spurious effects in perturbative calculations due to different orderings of inhomogeneous terms while computing corrections to Green functions for two different metrics. These effects are not carried over to physically measurable quantities like the renormalized value of the vacuum expectation value of the stress-energy tensor.