Fast Scramblers, Horizons and Expander Graphs
classification
✦ hep-th
gr-qcquant-ph
keywords
expanderfastgraphshorizonsquantumscramblerssystemsautomatically
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We propose that local quantum systems defined on expander graphs provide a simple microscopic model for thermalization on quantum horizons. Such systems are automatically fast scramblers and are motivated from the membrane paradigm by a conformal transformation to the so-called optical metric.
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