Zobrazeno 1 - 10
of 67
pro vyhledávání: '"Kudoh, Hideaki"'
Publikováno v:
Phys.Rev.D75:061304,2007
We study the dynamics of colliding domain walls including self-gravity. The initial data is set up by applying a BPS domain wall in five-dimensional supergravity, and we evolve the system determining the final outcome of collisions. After a collision
Externí odkaz:
http://arxiv.org/abs/gr-qc/0702138
Autor:
Kudoh, Hideaki
Publikováno v:
Phys.Rev.D75:064006,2007
We study a method to solve stationary axisymmetric vacuum Einstein equations numerically. As an illustration, the five-dimensional doubly spinning black rings that have two independent angular momenta are formulated in a way suitable for fully nonlin
Externí odkaz:
http://arxiv.org/abs/gr-qc/0611136
Autor:
Miyamoto, Umpei, Kudoh, Hideaki
Publikováno v:
JHEP0612:048,2006
Non-uniform black strings coupled to a gauge field are constructed by a perturbative method in a wide range of spacetime dimensions. At the linear order of perturbations, we see that the Gregory-Laflamme instability vanishes at the point where the ba
Externí odkaz:
http://arxiv.org/abs/gr-qc/0609046
Autor:
Takamizu, Yu-ichi, Kudoh, Hideaki
Publikováno v:
Phys.Rev.D74:103511,2006
The thermal equilibrium of string gas is necessary to activate the Brandenberger-Vafa mechanism, which makes our observed 4-dimensional universe enlarge. Nevertheless, the thermal equilibrium is not realized in the original setup, a problem that rema
Externí odkaz:
http://arxiv.org/abs/hep-th/0607231
Publikováno v:
Phys.Rev.D75:022003,2007
We discuss a robust data analysis method to detect a stochastic background of gravitational waves in the presence of non-Gaussian noise. In contrast to the standard cross-correlation (SCC) statistic frequently used in the stochastic background search
Externí odkaz:
http://arxiv.org/abs/gr-qc/0607015
Autor:
Kudoh, Hideaki
Publikováno v:
Phys.Rev.D73:104034,2006
It is argued that many nonextremal black branes exhibit a classical Gregory-Laflamme (GL) instability. Why does the universal instability exist? To find an answer to this question and explore other possible instabilities, we study stability of black
Externí odkaz:
http://arxiv.org/abs/hep-th/0602001
Publikováno v:
JCAP 0604 (2006) 001
We present fully non-linear simulations of a self-interacting scalar field in the early universe undergoing tachyonic preheating. We find that density perturbations on sub-horizon scales which are amplified by tachyonic instability maintain long rang
Externí odkaz:
http://arxiv.org/abs/hep-ph/0601108
Publikováno v:
Phys.Rev. D73 (2006) 064006
Future missions of gravitational-wave astronomy will be operated by space-based interferometers, covering very wide range of frequency. Search for stochastic gravitational-wave backgrounds (GWBs) is one of the main targets for such missions, and we h
Externí odkaz:
http://arxiv.org/abs/gr-qc/0511145
Publikováno v:
Mon.Not.Roy.Astron.Soc.364:1063-1068,2005
We discuss the gravitational wave background (GWB) from a cosmological population of gamma-ray bursts (GRBs). Among various emission mechanisms for the gravitational waves (GWs), we pay a particular attention to the vast anisotropic neutrino emission
Externí odkaz:
http://arxiv.org/abs/astro-ph/0509787
Autor:
Taruya, Atsushi, Kudoh, Hideaki
Publikováno v:
Phys.Rev. D72 (2005) 104015
We present a perturbative reconstruction method to make a skymap of gravitational-wave backgrounds (GWBs) observed via space-based interferometer. In the presence of anisotropies in GWBs, the cross-correlated signals of observed GWBs are inherently t
Externí odkaz:
http://arxiv.org/abs/gr-qc/0507114