Finite Action Principle and Horava-Lifshitz Gravity: early universe, black holes and wormholes
arXiv:2102.13556 · doi:10.1103/PhysRevD.104.103504
Abstract
The destructive interference of the neighbouring field configurations with infinite classical action in the gravitational path integral approach serves as a dynamical mechanism resolving the black hole singularity problem. It also provides an isotropic and homogeneous early universe without the need of inflation. In this work, we elaborate on the finite action in the framework of Horava-Lifshitz gravity -- a ghost-free QFT. Assuming the mixmaster chaotic solutions in the projectable H-L theory, we show that the beginning of the universe is homogeneous and isotropic. Furthermore, we show that the H-L gravity action selects only the regular black-hole spacetimes. We also comment on possibility of traversable wormholes in theories with higher curvature invariants.
arXiv commentMatches the version accepted in PRD, one minor mistake corrected
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