The appearance of bubbles in de sitter space

Details The appearance of bubbles in de sitter space The appearance of bubbles in de sitter space

Apr 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984nuphb.236..522l&link_type=abstract

Nuclear Physics B, Volume 236, Issue 2, p. 522-546.

Physics

Nuclear Physics

3

Scientific paper

We give a discussion, based on the ideas of Coleman and de Luccia, of the geometry of bubbles of real vacuum as they appear in a der Sitter universe dominated by false-vacuum energy density. This geometry seems not to be uniquely determined, and it is difficult to find a physical basis for discriminating between the different types of bubble. We also calculate numerically the tunnelling action for bubbles, in the case where false and real vacua are separated by a small barrier. The action is rather small, and varies only in a weak logarithmic way with barrier height, a result which may cause problems for some varieties of the ``new'' inflationary universe.
Address after October 1st 1983: Astrophysics Group, Fermilab, PO Box 500, Batavia, IL 60510, USA.

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