Topology of Vacuum Space-Time

Details Topology of Vacuum Space-Time Topology of Vacuum Space-Time

2007-03-02

arxiv.org/abs/hep-th/0703016v1

Physics

High Energy Physics

High Energy Physics - Theory

4 pages

Scientific paper

We present a topological classification of vacuum space-time. Assuming the 3-dimensional space allows a global chart, we show that the static vacuum space-time of Einstein's theory can be classified by the knot topology $\pi_3(S^3)=\pi_3(S^2)$. Viewing Einstein's theory as a gauge theory of Lorentz group and identifying the gravitational connection as the gauge potential of Lorentz group, we construct all possible vacuum gravitational connections which give a vanishing curvature tensor. With this we show that the vacuum connection has the knot topology, the same topology which describes the multiple vacua of SU(2) gauge theory. We discuss the physical implications of our result in quantum gravity.

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