24 citations · 112 across the 11 of their papers we have counts for
12 papers
Bogomol'nyi equations for Dirac-Born-Infeld cosmic string
Handhika Satrio Ramadhan, M Naufal Athaullah, Ilham Prasetyo
We revisit the question of whether Dirac-Born-Infeld (DBI) cosmic strings can admit Bogomol'nyi-Prasad-Sommerfield (BPS) configurations. Earlier work by Babichev et al. arXiv:0809.…
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…
Some exact BPS solutions for exotic vortices and monopoles
Handhika S. Ramadhan
We present several analytical solutions of BPS vortices and monopoles in the generalized Abelian Maxwell-Higgs and Yang-Mills-Higgs theories, respectively. These models have recent…
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…
On DBI Textures with Generalized Hopf Fibration
Handhika S. Ramadhan
In this letter we show numerical existence of O(4) Dirac-Born-Infeld (DBI) Textures living in (N +1) dimensional spacetime. These defects are characterized by …
Higher-dimensional DBI Solitons
Handhika S. Ramadhan
We study the theory of a (global) texture with DBI-like Lagrangian, the higher-dimensional generalization of the previously known chiral Born-Infeld theory. This model evades Derri…
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…
Decay of flux vacua to nothing
Jose J. Blanco-Pillado, Handhika S. Ramadhan, Benjamin Shlaer
We construct instanton solutions describing the decay of flux compactifications of a gauge theory by generalizing the Kaluza-Klein bubble of nothing. The surface of the bubble…
Skyrme Branes
Jose J. Blanco-Pillado, Handhika S. Ramadhan, Noriko Shiiki
We obtain static selfgravitating solitonic 3-brane solutions in the Einstein-Skyrme model in 7D. These solitons correspond to a smooth version of the previously discussed cosmic p-…