Global flows in quantum gravity
We study four-dimensional quantum gravity using non-perturbative renormalization group methods. We solve the corresponding equations for the fully momentum-dependent propagator, Newton's coupling and the cosmological constant. For the first time, we obtain a global phase diagram where the non-G...
Salvato in:
| Autori principali: | , , |
|---|---|
| Natura: | Article (Journal) Chapter/Article |
| Lingua: | inglese |
| Pubblicazione: |
2014
|
| In: |
Arxiv
|
| Accesso online: | Verlag, kostenfrei, Volltext: http://arxiv.org/abs/1403.1232
|
| Note sull'autore: | N. Christiansen, B. Knorr, J.M. Pawlowski, and A. Rodigast |
| Riassunto: | We study four-dimensional quantum gravity using non-perturbative renormalization group methods. We solve the corresponding equations for the fully momentum-dependent propagator, Newton's coupling and the cosmological constant. For the first time, we obtain a global phase diagram where the non-Gaussian ultraviolet fixed point of asymptotic safety is connected via smooth trajectories to a classical infrared fixed point. The theory is therefore ultraviolet complete and deforms smoothly into classical gravity as the infrared limit is approached. |
|---|---|
| Descrizione del documento: | Gesehen am 30.11.2017 |
| Descrizione fisica: | Online Resource |