224 citations · 1.2k across the 42 of their papers we have counts for
3 papers · 2 filters
High-Speed Collapse of a Hollow Sphere of Type I Matter
Zahid Ahmad, Tomohiro Harada, Ken-ichi Nakao +1
In this paper, we study the dynamics of a hollow spherical matter collapsing with very large initial velocity. The spacetime is initially very similar to the Vaidya solution, and t…
Lemaitre-Tolman-Bondi collapse from the perspective of loop quantum gravity
Martin Bojowald, Tomohiro Harada, Rakesh Tibrewala
Lemaitre-Tolman-Bondi models as specific spherically symmetric solutions of general relativity simplify in their reduced form some of the mathematical ingredients of black hole or…
Asymptotically Friedmann self-similar scalar field solutions with potential
Masanori Kyo, Tomohiro Harada, Hideki Maeda
We investigate self-similar solutions which are asymptotic to the Friedmann universe at spatial infinity and contain a scalar field with potential. The potential is required to be…