23 citations · 29 across the 2 of their papers we have counts for
3 papers
Perturbations of Spacetime around a Stationary Rotating Cosmic String
Kouji Ogawa, Hideki Ishihara, Hiroshi Kozaki +1
We consider the metric perturbations around a stationary rotating Nambu-Goto string in Minkowski spacetime. By solving the linearized Einstein equations, we study the effects of az…
Stationary Rotating Strings as Relativistic Particle Mechanics
Kouji Ogawa, Hideki Ishihara, Hiroshi Kozaki +2
Stationary rotating strings can be viewed as geodesic motions in appropriate metrics on a two-dimensional space. We obtain all solutions describing stationary rotating strings in f…
Quasinormal Ringing for Acoustic Black Holes at Low Temperature
Hiroyuki Nakano, Yasunari Kurita, Kouji Ogawa +1
We investigate a condensed matter ``black hole'' analogue, taking the Gross-Pitaevskii (GP) equation as a starting point. The linearized GP equation corresponds to a wave equation…