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Braneworld reheating in the bulk inflaton model
Yoshiaki Himemoto, Takahiro Tanaka
In the context of the braneworld inflation driven by a bulk scalar field, we study the energy dissipation from the bulk scalar field into the matter on the brane in order to unders…
Improvement on the metric reconstruction scheme in the Regge-Wheeler-Zerilli formalism
Sanjay Jhingan, Takahiro Tanaka
We study master variables in the Regge-Wheeler-Zerilli formalism. We show that a specific choice of new variables is suitable for studying perturbation theory from the viewpoint of…
Can a brane fluctuate freely?
Akihiro Ishibashi, Takahiro Tanaka
No, it cannot in the following sense if a self-gravitating vacuum brane is concerned. Once we write down the full set of linear perturbation equations of the system containing a se…
Brane collisions and braneworld cosmology
Uchida Gen, Akihiro Ishibashi, Takahiro Tanaka
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…
Second order perturbations in the radius stabilized Randall-Sundrum two branes model II -- Effect of relaxing strong coupling approximation --
Hideaki Kudoh, Takahiro Tanaka
We discuss gravitational perturbations in the Randall-Sundrum two branes model with radius stabilization. Following the idea by Goldberger and Wise for the radius stabilization, we…
Classical black hole evaporation in Randall-Sundrum infinite braneworld
Takahiro Tanaka
After the gravity induced on the brane in the Randall-Sundrum (RS) infinite braneworld is briefly reviewed, we discuss the possibility that black holes evaporate as a result of cla…