4 papers
Geometrically Significant Surfaces of Black Holes from a Single Scalar
Cagdas Ulus Agca, Bayram Tekin
Black hole spacetimes contain several geometrically distinguished hypersurfaces, including event and Cauchy horizons, stationary-limit surfaces, and curvature singularities. These…
A holographic description on half planes and wedges for N = 1 SUSY BF theory in 2D
Cagdas Ulus Agca
BF theory is a topological field theory that appears in different parts of theoretical physics and one of its important uses is in lower dimensional holography settings. While it c…
Fluid-membrane Descriptions of Various Black Holes
Cagdas Ulus Agca, Bayram Tekin
The membrane paradigm of black holes is an effective theory that replaces the event horizon with a fictitious yet tangible fluid. It has provided us with valuable insights, especia…
Membrane Paradigm Approach to the Johannsen-Psaltis Black Hole
Cagdas Ulus Agca, Bayram Tekin
The Johannsen-Psaltis (JP) black hole is a phenomenologically viable metric obtained by judiciously deforming the Kerr black hole such that the metric is asymptotically flat and ca…