Building blocks for topology change in 3 D

@inproceedings{Ionicioiu1997BuildingBF,
  title={Building blocks for topology change in 3 D},
  author={Radu Ionicioiu},
  year={1997}
}
We investigate topology change in 3D. Using Morse theory and handle decomposition we find the set of elementary cobordisms for 3-manifolds. These are: (i) Ø ↔ S; (ii) Σg ↔ Σg+1; (iii) Σg1 ⊔ Σg2 ↔ Σg1+g2 , and they have appealing physical interpretations, e.g. Big Bang/Big Crunch, wormhole creation/annihilation and Einstein-Rosen bridge creation/annihilation, respectively. This decomposition into building blocks can be used in the path integral approach to quantum gravity in the sum over… CONTINUE READING
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