4 citations · 4 across the 1 of their papers we have counts for
3 papers
cond-mat2002★ 4 cited
Black hole and baby universe in a thin film of 3He-A
Ted Jacobson, Tatsuhiko Koike
Condensed matter black hole analogues may provide guidance in grappling with difficult questions about the role of short distance physics in the Hawking effect. These questions bea…
gr-qc1997
Hamiltonians for Compact Homogeneous Universes
Masayuki Tanimoto, Tatsuhiko Koike, Akio Hosoya
We briefly show how we can obtain Hamiltonians for spatially compact locally homogeneous vacuum spacetimes. The dynamical variables are categorized into the curvature parameters an…
gr-qc1993
Causal Feature of Central Singularity and Gravitational Mass
Tatsuhiko Koike, Hisashi Onozawa, Masaru Siino
Mass of singularity is defined, and its relation to whether the singularity is spacelike, timelike or null is discussed for spherically symmetric spacetimes. It is shown that if th…