On the Euclidean action of de Sitter black holes and constrained instantons
نویسندگان
چکیده
We compute the on-shell Euclidean action of Schwarzschild-de Sitter black holes, and take their contributions in gravitational path integral into account using formalism constrained instantons. Although de hole geometries have conical singularities for generic masses, is finite shown to be independent time periodicity equal minus sum cosmological horizon entropy. apply this result probability a nonrotating, neutral arbitrary mass nucleate spontaneously empty space, which separates constant “non-perturbative” contribution, latter corresponding proper saddle-point instanton Nariai limit. also speculate on some further applications our results, most notably as potential non-perturbative corrections correlators vacuum.
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ژورنال
عنوان ژورنال: SciPost physics
سال: 2023
ISSN: ['2542-4653']
DOI: https://doi.org/10.21468/scipostphys.14.2.022