4 papers
Thermal Stability and QNMs of a Hairy Black Hole in the Presence of a Monopole Field
George Koutsoumbas, Andri Machattou, Eleftherios Papantonopoulos
We study the stability of a generalization of the GHS-GM black hole in the presence of a dilaton and a monopole field. We find that the thermal behaviour of system depends on the s…
Formation of Bound States in Quintessence Alternative Theories
George Koutsoumbas, Andri Machattou, Eleftherios Papantonopoulos
We study the formation and behaviour of bound states formed outside the horizon of a black hole in the presence of quintessence matter. Calculating the Regge and Wheeler potential…
On internal mechanical properties of Electroweak Magnetic Monopoles and their effects on stability
K. Farakos, G. Koutsoumbas, Nick E. Mavromatos +1
By considering properties of the energy-momentum tensor of the electroweak magnetic monopole and its Born-Infeld extension, we attempt to make comments on the stability of these co…
Kinetic coupling and dark matter on the lattice
K. Farakos, V. Iconomou, G. Koutsoumbas
We study a system coupled to scalar fields. Initially the model is studied in a novel continuum formulation and study of the appropriate diagonalizations is perf…