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Stability in and of de Sitter space

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 نشر من قبل Benjamin Shlaer
 تاريخ النشر 2009
  مجال البحث فيزياء
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 تأليف Benjamin Shlaer




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We demonstrate that possession of a single negative mode is not a sufficient criterion for an instanton to mediate exponential decay. For example, de Sitter space is generically stable against decay via the Coleman-De Luccia instanton. This is due to the fact that the de Sitter Euclidean action is bounded below, allowing for an approximately de Sitter invariant false vacuum to be constructed.



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