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gr-qc2020
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…
gr-qc2020
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…