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Critical Dynamics of Random Surfaces and Multifractal Scaling

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  • Christof Schmidhuber

Abstract

The critical dynamics of conformal field theories on random surfaces is investigated beyond the dynamics of the overall area and the genus. It is found that the evolution of the order parameter in physical time is a multifractal random walk. Accordingly, the higher moments of time variations of the order parameter exhibit multifractal scaling. The series of Hurst exponents is computed and illustrated with the examples of the Ising-, 3-state-Potts-, and general minimal models on a random surface. Models are identified that can replicate the observed multifractal scaling in financial markets.

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  • Christof Schmidhuber, 2025. "Critical Dynamics of Random Surfaces and Multifractal Scaling," Papers 2505.23928, arXiv.org.
    • Handle: RePEc:arx:papers:2505.23928
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    File URL: http://arxiv.org/pdf/2505.23928
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