24 citations · 112 across the 11 of their papers we have counts for
6 papers · 1 filter
Bound orbits around charged black strings
A S. Habibina, H. S. Ramadhan
We study the geodesics of Reissner-Nordstrom and nonsingular black strings, and establish a rational bound orbit taxonomy for both massive as well as null test particles. For…
Higher-dimensional black holes with Dirac-Born-Infeld (DBI) global defects
Handhika S. Ramadhan, Ilham Prasetyo, Aulia M. Kusuma
It is well-known that the exact solution of non-linear model coupled to gravity can be perceived as an exterior gravitational field of a global monopole. Here we study Einstein…
Classical defects in higher-dimensional Einstein gravity coupled to nonlinear -models
Ilham Prasetyo, Handhika S. Ramadhan
We construct solutions of higher-dimensional Einstein gravity coupled to nonlinear -model with cosmological constant. The -model can be perceived as exterior configuration of…
Gravity of a noncanonical global monopole: conical topology and compactification
Ilham Prasetyo, Handhika S. Ramadhan
We obtain solutions of Einstein's equations describing gravitational field outside a noncanonical global monopole with cosmological constant. In particular, we consider two models…
Flux compactifications in Einstein-Born-Infeld theories
Handhika S. Ramadhan, Brian A. Cahyo, Muhammad Iqbal
We investigate the flux compactification mechanism in simple toy models of Einstein-Born-Infeld theories. These are the direct generalizations of the Einstein-Maxwell flux compacti…
Bubbles from Nothing
Jose J. Blanco-Pillado, Handhika S. Ramadhan, Benjamin Shlaer
Within the framework of flux compactifications, we construct an instanton describing the quantum creation of an open universe from nothing. The solution has many features in common…