Topology Change by Quantum Tunneling in (2 + 1)-Dimensional Einstein Gravity

Details Topology Change by Quantum Tunneling in (2 + 1)-Dimensional Einstein Gravity Topology Change by Quantum Tunneling in (2 + 1)-Dimensional Einstein Gravity

Feb 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992pthph..87..253f&link_type=abstract

Progress of Theoretical Physics, Vol. 87, No. 2, pp. 253-268

Physics

3

Scientific paper

We investigate possibilities of topology change and nucleation of universes in the (2 + 1)-dimensional Einstein gravity model with negative cosmological constant. We demonstrate that topology change and nucleation phenomena can occur by quantum tunneling by explicitly constructing Euclidean signature hyperbolic 3-geometry. The amplitude is explicitly calculated in the WKB approximation. Point particles can be accommodated in this scheme as topological defects in space-time. They are pair created and annihilated when the universe changes its topology.

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