Fast Scramblers And Ultrametric Black Hole Horizons

Abstract

We propose that fast scrambling on finite-entropy stretched horizons can be modeled by a diffusion process on an effective ultrametric geometry. A scrambling time scaling logarithmically with the entropy is obtained when the elementary transition rates saturate causality bounds on the stretched horizon. The so-defined ultrametric diffusion becomes unstable in the infinite-entropy limit. A formally regularized version can be shown to follow a particular case of the Kohlrausch law.

14 pages, 2 figures. Two extra sections, one figure and references added

References in corpus (2)

• Black holes as mirrors: quantum information in random subsystems
• Fast Scramblers and Non-Commutative Gauge Theories

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