LONG STRING DYNAMICS IN PURE GRAVITY ON AdS₃
Kim J., Porrati M.

Received: October 11, 2014

DOI: 10.7868/S0044451015030167

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We study the classical dynamics of a completion of pure AdS₃ gravity, whose only degrees of freedom are boundary gravitons and long strings. We argue that the best regime for describing pure gravity is that of ``heavy'' strings, for which back-reaction effects on the metric must be taken into account. We show that once back-reaction is properly accounted for, regular finite-energy states are produced by heavy strings even in the infinite-tension limit. Such a process is similar to, but different from, nucleation of space out of a ``bubble of nothing''. Contribution for the JETP special issue in honor of V. A. Rubakov's 60th birthday