Taeyoon Moon

f (R) black holes

We study the f (R)-Maxwell black hole imposed by constant curvature and its all thermodynamic quantities, which may lead to the Reissner-Nordström-AdS black hole by redefining Newtonian constant and charge. Further, we obtain the f (R)-Yang-Mills black hole imposed by constant curvature, which is related to the Einstein-Yang-Mills black hole in AdS space. Since there is no analytic black hole solution in the presence of Yang-Mills field, we obtain asymptotic solutions. Then, we confirm the presence of these solutions in a numerical way.

Quasinormal frequencies and thermodynamic quantities for the Lifshitz black holes

We find the connection between thermodynamic quantities and quasinormal frequencies in Lifshitz black holes. It is shown that the globally stable Lifshitz black holes have pure imaginary quasinormal frequencies. We also show that by employing the Maggiores method, both the horizon area and the entropy can be quantized for these black holes.

Stability of f(R) black holes

We investigate the stability of an

Universe Driven by Perfect Fluid in Eddington-inspired Born-Infeld Gravity

f(R)

Stability analysis of f(R)-AdS black holes

(Schwarzschild) black hole obtained from the

Classical stability of BTZ black holes in new massive gravity

f(R)

Precursor of Inflation

gravity. It is difficult to carry out the perturbation analysis around the black hole because the linearized Einstein equation is fourth order in

Critical gravity in the Chern–Simons modified gravity

f(R)

Polarization modes of gravitational waves in three-dimensional massive gravities

gravity. In order to resolve this difficulty, we transform

Black hole stability in Jordan and Einstein frames

f(R)