Infrared fixed point in quantum Einstein gravity
β Scribed by S. Nagy, J. Krizsan, K. Sailer
- Book ID
- 118775548
- Publisher
- Springer-Verlag
- Year
- 2012
- Tongue
- English
- Weight
- 618 KB
- Volume
- 2012
- Category
- Article
- ISSN
- 1126-6708
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
Infrared regularization of Feynman amplitudes in perturbative quantum gravity is discussed. Two familiar strategies, momentum cutoff and massification, are critically reviewed. Both methods rely on cancellations (in cross sections) between infrared divergences in individual Feynman diagrams on the o
In the functional integral formalism of quantum field theory a gauge breaking term is added to the classical action in order to parametrize the orbits of the gauge group. I n quantum gravity this gauge breakjng term fixes the orientation of the Riemannian metric with respect to a fixed reference met