We study the procedure that allows to rewrite the actions of some modified gravity theories like mimetic gravity and Regge-Teitelboim embedding theory as Einstein-Hilbert actions with additional matter contributions. It turns out that this procedure can be applied to brane action, which lead to a polynomial brane action. We also examine the connection between this procedure and Polyakov trick in string theory.
|Journal||International Journal of Geometric Methods in Modern Physics|
|Early online date||13 Feb 2020|
|State||Published - 2020|
- Isometric embedding
- Polyakov action
- modified gravity
- mimetic gravity