462 citations · 3.2k across the 65 of their papers we have counts for
4 papers · 2 filters
Stability of a cosmological model with dynamical cancellation of vacuum energy
A. D. Dolgov, M. Kawasaki
The stability of cosmological solutions in the recently suggested specific mechanism of dynamical compensation of vacuum energy is studied. It is found that the solutions in the or…
Partially ionizing the universe by decaying particles
S. Kasuya, M. Kawasaki, Naoshi Sugiyama
We show that UV photons produced by decaying particles can partially reionize the universe and explain the large optical depth observed by Wilkinson Microwave Anisotropy Probe. Tog…
Comments on the Evolution of Strongly Degenerate Neutrinos in the Early Universe
Kazuhide Ichikawa, Masahiro Kawasaki
We reconsider the evolution of strongly degenerate neutrinos in the early universe. Our chief concern is the validity of the entropy conservation after the neutrino annihilation pr…
The Earliest Epoch of Reionisation in the Standard CDM Model
M. Fukugita, M. Kawasaki
We show that the earliest possible reionisation of the Universe is approximately at and the optical depth is in the conventionally accepted cold d…