Double-bubble spacetimes

Details Double-bubble spacetimes Double-bubble spacetimes

Sep 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987phrvd..36.1933i&link_type=abstract

Physical Review D (Particles and Fields), Volume 36, Issue 6, 15 September 1987, pp.1933-1935

Physics

7

Origin And Formation Of The Universe, Exact Solutions, Particle-Theory And Field-Theory Models Of The Early Universe

Scientific paper

Previous analyses are extended to the study of spacetimes consisting of two identical, nonflat spherical bubbles glued together by a thin wall exhibiting a constant ratio Γ of tension to surface energy density. Particularly simple solutions correspond to bubbles of Schwarzschild vacua and to bubbles of Friedmann cosmologies separated by a cosmic-string network. The wall is gravitationally attractive if Γ<1/2 and repulsive if Γ>1/2.

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