Emergent scale symmetry: connecting inflation and dark energy
In a variable gravity scenario containing an ultraviolet and an infrared fixed point quantum scale invariance emerges at both fixed points. We discuss a particular model for the crossover between the fixed points which can naturally account for inflation and dark energy using a single scalar field....
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article (Journal) Chapter/Article |
| Language: | English |
| Published: |
May 1, 2017
|
| In: |
Arxiv
|
| Online Access: | Verlag, kostenfrei, Volltext: http://arxiv.org/abs/1705.00552 Verlag, kostenfrei, Volltext: http://arxiv.org/pdf/1705.00552.pdf 
|
| Author Notes: | Javier Rubio, Christof Wetterich |
| Summary: | In a variable gravity scenario containing an ultraviolet and an infrared fixed point quantum scale invariance emerges at both fixed points. We discuss a particular model for the crossover between the fixed points which can naturally account for inflation and dark energy using a single scalar field. In the Einstein-frame formulation the potential can be expressed in terms of Lambert functions, interpolating between a power-law inflationary potential and a mixed quintessence potential. For two natural heating scenarios, the transition between inflation and radiation domination proceeds through a "graceful reheating" stage. The radiation temperature significantly exceeds the temperature of Big Bang Nucleosynthesis. |
|---|---|
| Item Description: | Gesehen am 13.07.2017 |
| Physical Description: | Online Resource |