Splitting of an Extremal Reissner-Nordstr\"om Throat via Quantum Tunneling
Abstract
The interior near the horizon of an extremal Reissner-Nordstr\"om black hole is taken as an initial state for quantum mechanical tunneling. An instanton is presented that connects this state with a final state describing the presence of several horizons. This is interpreted as a WKB description of fluctuations due to the throat splitting into several components.
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