97 citations · 296 across the 9 of their papers we have counts for
12 papers · 1 filter
Phantom stars and topology change
Andrew DeBenedictis, Remo Garattini, Francisco S. N. Lobo
In this work, we consider time-dependent dark energy star models, with an evolving parameter crossing the phantom divide, . Once in the phantom regime, the null energy co…
Extracting the Maxwell charge from the Wheeler-DeWitt equation
Remo Garattini
We consider the Wheeler-De Witt equation as a device for finding eigenvalues of a Sturm-Liouville problem. In particular, we will focus our attention on the electric (magnetic) Max…
Extracting the Cosmological Constant from the Wheeler DeWitt Equation in a Modified Gravity Theory
Remo Garattini
We discuss how to extract information about the cosmological constant from the Wheeler-DeWitt equation, considered as an eigenvalue of a Sturm-Liouville problem. A generalization t…
The cosmological constant as an eigenvalue of f(R)-gravity Hamiltonian constraint
S. Capozziello, R. Garattini
In the framework of ADM formalism, it is possible to find out eigenvalues of the WDW equation with the meaning of vacuum states, i.e. cosmological constants, for f(R) theories of g…
Self sustained traversable wormholes and the equation of state
Remo Garattini
We compute the graviton one loop contribution to a classical energy in a \textit{traversable} wormhole background. The form of the shape function considered is obtained by the equa…
Self sustained phantom wormholes in semi-classical gravity
Remo Garattini, Francisco S. N. Lobo
A possible candidate for the late time accelerated expanding Universe is phantom energy, which possesses rather bizarre properties, such as the prediction of a Big Rip singularity…