Klein-Gordon Solutions on Non-Globally Hyperbolic Standard Static Spacetimes

Details Klein-Gordon Solutions on Non-Globally Hyperbolic Standard Static Spacetimes Klein-Gordon Solutions on Non-Globally Hyperbolic Standard Static Spacetimes

2012-04-18

arxiv.org/abs/1204.4080v1

Physics

Mathematical Physics

Scientific paper

We construct a class of solutions to the Cauchy problem of the Klein-Gordon equation on any standard static spacetime. Specifically, we have constructed solutions to the Cauchy problem based on any self-adjoint extension (satisfying a technical condition: "acceptability") of (some variant of) the Laplace-Beltrami operator defined on test functions in an $L^2$-space of the static hypersurface. The proof of the existence of this construction completes and extends work originally done by Wald. Further results include the uniqueness of these solutions, their support properties, the construction of the space of solutions and the energy and symplectic form on this space, an analysis of certain symmetries on the space of solutions and of various examples of this method, including the construction of a non-bounded below acceptable self-adjoint extension generating the dynamics.

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