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What Casimir Energy can suggest about Space Time Foam?

Remo Garattini
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Abstract

In the context of a model of space-time foam, made by $N$ wormholes we discuss the possibility of having a foam formed by different configurations. An equivalence between Schwarzschild and Schwarzschild-Anti-de Sitter wormholes in terms of Casimir energy is shown. An argument to discriminate which configuration could represent a foamy vacuum coming from Schwarzschild black hole transition frequencies is used. The case of a positive cosmological constant is also discussed. Finally, a discussion involving charged wormholes leads to the conclusion that they cannot be used to represent a ground state of the foamy type.

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Remo Garattini. 2001-10-20. What Casimir Energy can suggest about Space Time Foam?. https://doi.org/10.1142/s0217751x02010200

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