Artículos de revistas
Stability, causality, and quasinormal modes of cosmic strings and cylinders
Fecha
2010Registro en:
PHYSICAL REVIEW D, v.81, n.4, 2010
1550-7998
10.1103/PhysRevD.81.044003
Autor
Pavan, Alan Bendasoli
Abdalla, Elcio
Mendes, Carlos Molina
Institución
Resumen
In this work we consider the evolution of a massive scalar field in cylindrically symmetric space-times. Quasinormal modes have been calculated for static and rotating cosmic cylinders. We found unstable modes in some cases. Rotating as well as static cosmic strings, i.e., without regular interior solutions, do not display quasinormal oscillation modes. We conclude that rotating cosmic cylinder space-times that present closed timelike curves are unstable against scalar perturbations.