21 citations · 40 across the 2 of their papers we have counts for
5 papers
Physical Hamiltonian for mimetic gravity
Marco de Cesare, Viqar Husain
Starting from a local action for mimetic gravity that includes higher derivatives of a scalar field , we derive a gauge-fixed canonical action of the theory in the ADM canonical…
The singularity in mimetic Kantowski-Sachs cosmology
Marco de Cesare, Sanjeev S. Seahra, Edward Wilson-Ewing
The dynamics of the vacuum Kantowski-Sachs space-time are studied in the so-called limiting curvature mimetic gravity theory. It is shown that in this theory the vacuum Kantowski-S…
A generalized Kasner transition for bouncing Bianchi I models in modified gravity theories
Marco de Cesare, Edward Wilson-Ewing
We derive transition rules for Kasner exponents in bouncing Bianchi I models with generic perfect fluid matter fields for a broad class of modified gravity theories where cosmologi…
Reconstruction of mimetic gravity in a non-singular bouncing universe from quantum gravity
Marco de Cesare
We illustrate a general reconstruction procedure for mimetic gravity. Focusing on a bouncing cosmological background, we derive general properties that must be satisfied by the fun…
Noncommutative gravity with self-dual variables
Marco de Cesare, Mairi Sakellariadou, Patrizia Vitale
We build a noncommutative extension of Palatini-Holst theory on a twist-deformed spacetime, generalizing a model that has been previously proposed by Aschieri and Castellani. The t…