One-loop calculations in quantum gravity: graviton self-energy, perturbative gauge invariance and Slavnov-Ward identities

Scalar Matter Coupled to Quantum Gravity

Scalar Matter Coupled to Quantum Gravity in the Causal Approach: One-Loop Calculations and Perturbative Gauge Invariance

✍ Nicola Grillo 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 273 KB

Quantum gravity coupled to scalar massive matter fields is investigated in the framework of causal perturbation theory using the Epstein Glaser regularizationÂrenormalization scheme. Detailed one-loop calculations include the matter loop graviton self-energy and the matter self-energy. The condition