52 citations · 154 across the 6 of their papers we have counts for
6 papers
Kaluza-Klein bubble like structure and celestial sphere in inflationary universe
Tetsuya Shiromizu, Shinya Tomizawa, Yuki Uchida +1
We consider five dimensional deSitter spacetimes with a deficit angle due to the presence of a closed 2-brane and identify one dimension as an extra dimension. From the four dimens…
Twist of stationary black hole/ring in five dimensions
Shinya Tomizawa, Yuki Uchida, Tetsuya Shiromizu
It is unlikely that uniqueness theorem holds for stationary black holes in higher dimensional spacetimes. However, we will examine the possibility that the higher multipole moments…
Twisted Superspace for N=D=2 Super BF and Yang-Mills with Dirac-Kähler Fermion Mechanism
Junji Kato, Noboru Kawamoto, Yukiya Uchida
We propose a twisted D=N=2 superspace formalism. The relation between the twisted super charges including the BRST charge, vector and pseudo scalar super charges and the N=2 spinor…
Stationary Einstein-Maxwell fields in arbitrary dimensions
Daisuke Ida, Yuki Uchida
The Einstein-Maxwell equations in D-dimensions admitting (D-3) commuting Killing vector fields have been investigated. The existence of the electric, magnetic and twist potentials…
The scalar perturbation of the higher-dimensional rotating black holes
Daisuke Ida, Yuki Uchida, Yoshiyuki Morisawa
The massless scalar field in the higher-dimensional Kerr black hole (Myers- Perry solution with a single rotation axis) has been investigated. It has been shown that the field equa…
4-dimensional BF Gravity on the Lattice
Noboru Kawamoto, Noriaki Sato, Yukiya Uchida
We propose the lattice version of gravity action whose partition function leads to the product of a particular form of 15- symbol which corresponds to a 4-simplex. The acti…