216 citations · 487 across the 15 of their papers we have counts for
6 papers · 1 filter
Looking at the Gregory-Laflamme instability through quasi-normal modes
R. A. Konoplya, Keiju Murata, Jiro Soda +1
We study evolution of gravitational perturbations of black strings. It is well known that for all wavenumber less than some threshold value, the black string is unstable against sc…
A Note on Separability of Field Equations in Myers-Perry Spacetimes
Keiju Murata, Jiro Soda
We study separability of scalar, vector and tensor fields in 5-dimensional Myers-Perry spacetimes with equal angular momenta. In these spacetimes, there exists enlarged symmetry, $…
Kaluza-Klein braneworld cosmology with static internal dimensions
Sugumi Kanno, David Langlois, Misao Sasaki +1
We investigate the Kaluza-Klein braneworld cosmology from the point of view of observers on the brane. We first generalize the Shiromizu-Maeda-Sasaki (SMS) equations to higher dime…
Hawking Radiation from Squashed Kaluza-Klein Black Holes -- A Window to Extra Dimensions --
Hideki Ishihara, Jiro Soda
We explore the obsevability of extra dimensions through 5-dimensional squashed Kaluza-Klein black holes residing in the Kaluza-Klein spacetime. With the expectation that the Hawkin…
A Unified View of RS Braneworlds
Sugumi Kanno, Jiro Soda
There are various different descriptions of Randall-Sundrum (RS) braneworlds. Here we present a unified view of the braneworld based on the gradient expansion approach. In the case…
Gravitational Waves in Brane World -A Midi-superspace Approach-
Jiro Soda
It is important to reveal the brane-bulk correspondence for understanding the brane world cosmology. When gravitational waves exist in the bulk, however, it is difficult to make th…