English

Transdimensional Tunneling in the Multiverse

High Energy Physics - Theory 2010-05-25 v2 General Relativity and Quantum Cosmology

Abstract

Topology-changing transitions between vacua of different effective dimensionality are studied in the context of a 6-dimensional Einstein-Maxwell theory. The landscape of this theory includes a 6d6d de Sitter vacuum (dS6dS_6), a number of dS4×S2dS_4 \times S_2 and AdS4×S2AdS_4 \times S_2 vacua, and a number of AdS2×S4AdS_2 \times S_4 vacua. We find that compactification transitions dS6AdS2×S4dS_6 \to AdS_2 \times S_4 occur through the nucleation of electrically charged black hole pairs, and transitions from dS6dS_6 to dS4×S2dS_4 \times S_2 and AdS4×S2AdS_4 \times S_2 occur through the nucleation of magnetically charged spherical black branes. We identify the appropriate instantons and describe the spacetime structure resulting from brane nucleation.

Keywords

Cite

@article{arxiv.0912.4082,
  title  = {Transdimensional Tunneling in the Multiverse},
  author = {Jose J. Blanco-Pillado and Delia Schwartz-Perlov and Alexander Vilenkin},
  journal= {arXiv preprint arXiv:0912.4082},
  year   = {2010}
}

Comments

32 pages, 15 figures New references added

R2 v1 2026-06-21T14:26:32.767Z