Black-hole universe: Time evolution

Chul Moon Yoo, Hirotada Okawa, Ken Ichi Nakao

研究成果: Article査読

42 被引用数 (Scopus)

抄録

Time evolution of a black hole lattice toy model universe is simulated. The vacuum Einstein equations in a cubic box with a black hole at the origin are numerically solved with periodic boundary conditions on all pairs of faces opposite to each other. Defining effective scale factors by using the area of a surface and the length of an edge of the cubic box, we compare them with that in the Einstein-de Sitter universe. It is found that the behavior of the effective scale factors is well approximated by that in the Einstein-de Sitter universe. In our model, if the box size is sufficiently larger than the horizon radius, local inhomogeneities do not significantly affect the global expansion law of the Universe even though the inhomogeneity is extremely nonlinear.

本文言語English
論文番号161102
ジャーナルPhysical Review Letters
111
16
DOI
出版ステータスPublished - 2013 10 14
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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