Bubbles in extended inflation and multi-production of universes

Nobuyuki Sakai*, Kei ichi Maeda

*この研究の対応する著者

研究成果: Article査読

抄録

Developing the thin-wall method of Israel, we present a formalism to investigate bubble dynamics in generalized Einstein theories. We derive the equations of motion for a bubble, finding that the space-time inside a bubble is always inhomogeneous. Applying this formalism to extended inflation, we find the following two results: (1) Any true vacuum bubble expands, contrary to the results of Goldwirth-Zaglauer, who claim that bubbles created initially later collapse. We show that their initial conditions for collapsing bubbles are physically inconsistent. (2) Concerning the global space-time structure of the Universe in extended inflation, we show that worm-holes are produced as in old inflation, resulting in the multi-production of universes.

本文言語English
ページ(範囲)469-472
ページ数4
ジャーナルVistas in Astronomy
37
C
DOI
出版ステータスPublished - 1993

ASJC Scopus subject areas

  • 天文学と天体物理学

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