Examples of the Vilkovisky-DeWitt effective action in one-loop quantum gravity

Details Examples of the Vilkovisky-DeWitt effective action in one-loop quantum gravity Examples of the Vilkovisky-DeWitt effective action in one-loop quantum gravity

Jun 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992phrvd..45.4504a&link_type=abstract

Physical Review D (Particles, Fields, Gravitation, and Cosmology), Volume 45, Issue 12, 15 June 1992, pp.4504-4513

Physics

Theory Of Quantized Fields

Scientific paper

We present two examples where the contribution of one-loop gravitons to the renormalized stress-energy tensor may be calculated explicitly from both the standard and the Vilkovisky-DeWitt effective action. The renormalization is carried out using the Hadamard renormalization procedure outlined by Allen, Folacci, and Ottewill [Phys. Rev. D 38, 1069 (1988)]. The examples show that the standard and Vilkovisky-DeWitt formulations of quantum field theory lead to different physical predictions at one loop.

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