Publications (30)
Exact differential and quantum corrections of entropy for axially symmetric black holes
M. Akbar, K. Saifullah
Using the exactness criteria of entropy from the first law of black hole thermodynamics, we study quantum corrections for axially symmetric black holes.
Quantum tunneling from scalar fields in rotating black strings
H. Gohar, K. Saifullah
Using the Hamilton-Jacobi method of quantum tunneling and complex path integration, we study Hawking radiation of scalar particles from rotating black strings. We discuss tunneling…
On the definition of matter collineations
Asghar Qadir, K. Saifullah
It is shown that when the stress-energy tensor of a spacetime is diagonal and is written in the mixed form, its collineations admit infinite dimensional Lie algebras except possibl…
Greybody factor of scalar fields from black strings
Jamil Ahmed, K. Saifullah
The greybody factor of massless, uncharged scalar fields is studied in the background of cylindrically symmetric spacetimes, in the low-energy approximation. We discuss two cases.…
Quantum corrections to the entropy of charged rotating black holes
M. Akbar, K. Saifullah
Hawking radiation from a black hole can be viewed as quantum tunneling of particles through the event horizon. Using this approach we provide a general framework for studying corre…
Greybody factor of scalar field from Reissner-Nordstrom-de Sitter black hole
Jamil Ahmed, K. Saifullah
In this work we derive a general expression for the greybody factor of non-minimally coupled scalar fields in Reissner-Nordström-de Sitter spacetime in low frequency approximation…