1. |
|
|
2. |
|
|
3. |
|
|
4. |
|
|
5. |
- Jimenez, Jose Beltran, et al.
(författare)
-
Modified Gravity with Vector Distortion and Cosmological Applications
- 2017
-
Ingår i: Universe. - : MDPI AG. - 2218-1997. ; 3:2
-
Tidskriftsartikel (refereegranskat)abstract
- We briefly review the basics of Weyl geometry and its natural extension by a general linear "distortion" of the metric connection by a vector field. A special class of the connections has torsion but retains the Weyl's semi-metricity condition. We present ghost-free gravitational theories in this geometrical setup and highlight their possible cosmological applications, such as new self-tuning solutions and new bouncing solutions found in the quadratic-curvature theories. The vector distortion can mimic the cosmological effects of dark matter.
|
|