Lévy walks

V. Zaburdaev, S. Denisov, J. Klafter

Research output: Contribution to journalArticlepeer-review

Abstract

Random walk is a fundamental concept with applications ranging from quantum physics to econometrics. Remarkably, one specific model of random walks appears to be ubiquitous across many fields as a tool to analyze transport phenomena in which the dispersal process is faster than dictated by Brownian diffusion. The Lévy-walk model combines two key features, the ability to generate anomalously fast diffusion and a finite velocity of a random walker. Recent results in optics, Hamiltonian chaos, cold atom dynamics, biophysics, and behavioral science demonstrate that this particular type of random walk provides significant insight into complex transport phenomena. This review gives a self-consistent introduction to Lévy walks, surveys their existing applications, including latest advances, and outlines further perspectives.

Original languageEnglish
Article number483
Pages (from-to)483-530
Number of pages48
JournalReviews of Modern Physics
Volume87
Issue number2
DOIs
StatePublished - 9 Jun 2015

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