Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Uchida, Gen"'
Autor:
Uchida, Gen, Sasaki, Misao
Publikováno v:
Prog.Theor.Phys.108:471-494,2002
The quantum fluctuation of the relative location of two (n-1)-dimensional de Sitter branes (i.e., of n spacetime dimensions) embedded in the (n+1)-dimensional anti-de Sitter bulk, which we shall call the quantum radion, is investigated at the linear
Externí odkaz:
http://arxiv.org/abs/gr-qc/0201031
Publikováno v:
International Journal of Automation Technology; Jan2023, Vol. 17 Issue 1, p21-31, 11p
Publikováno v:
International Journal of Automation Technology; Jan2022, Vol. 16 Issue 1, p12-20, 9p
Publikováno v:
International Journal of Automation Technology; Jan2021, Vol. 15 Issue 1, p57-64, 8p
Publikováno v:
Progress of Theoretical Physics Supplement. 148:267-275
Recently, we proposed a new braneworld model [GIT] in which the collision of a brane universe and a vacuum bubble coming from the extra-dimension is utilized as a trigger of brane big-bang. In this article, mainly reviewing this model, we briefly sum
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd6b8df604eca354a96a5c0b8f03bb8d
https://doi.org/10.1143/ptps.148.267
https://doi.org/10.1143/ptps.148.267
Autor:
Uchida Gen, Misao Sasaki
Publikováno v:
Progress of Theoretical Physics. 105:591-606
The radion on the de Sitter brane is investigated at the linear perturbation level, using the covariant curvature tensor formalism developed by Shiromizu, Maeda and Sasaki. It is found that if there is only one de Sitter brane with positive tension,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c78bce3555441a6981be49cc2637c186
https://doi.org/10.1143/ptp.105.591
https://doi.org/10.1143/ptp.105.591
Autor:
Tetsuya Shiromizu, Uchida Gen
Publikováno v:
Journal of Mathematical Physics. 40:2021-2031
It is shown that if an asymptotically flat spacetime is asymptotically stationary, in the sense that $\Lie_{\xi} g_{ab}$ vanishes at the rate $\sim t^{-3}$ for asymptotically timelike vector field $\xi^a$, and the energy-momentum tensor vanishes at t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a0106bd6bc3f5d79cf058d846a5d809
https://doi.org/10.1063/1.532848
https://doi.org/10.1063/1.532848
Publikováno v:
Physical Review D. 66
We propose an alternative inflationary universe scenario in the context of Randall-Sundrum braneworld cosmology. In this new scenario the existence of extra dimension(s) plays an essential role. First, the brane universe is initially in the inflation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1222937f14a9bbd3d3caadfea0616ba3
https://doi.org/10.1103/physrevd.66.023519
https://doi.org/10.1103/physrevd.66.023519
Autor:
Uchida Gen, Tetsuya Shiromizu
We consider the force acting on a spinning charged test particle (probe particle) with the mass m and the charge q in slow rotating the Kerr-Newman-deSitter(KNdS) black hole with the mass M and the charge Q. We consider the case which the spin vector
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a79c3899d815af92f3ff156a06751b10
http://arxiv.org/abs/gr-qc/9912040
http://arxiv.org/abs/gr-qc/9912040
Autor:
Uchida Gen, Tetsuya Shiromizu
We define space-times which are asymptotic to radiation dominant Friedman-Robertson-Walker space-times at timelike infinity and study the asymptotic structure. We discuss the local asymptotic symmetry and give a definition of the total energy from th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0454277406e7c256c3b9156f632a6b6d