2010/09/04 by Lauri Lehman, Václav Zatloukal, Vaclav Zatloukal +3 · 14 citations
Computer Science · Mathematics · Physics and Astronomy · #Anyon #Geometry #Mathematics #Physics #Quadratic equation #Quantum #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum computer #Quantum many-body systems #Quantum mechanics #Quantum walk #Statistical physics #Topological quantum computer #cond-mat.other #quant-ph
paper · pdf · doi:10.1103/physrevlett.106.230404
published in Physical Review Letters 106(23), 230404 (American Physical Society) · 7 pages, 5 figures
arxiv created 2010/09/04 · openalex publication_date 2011/06/10 · arxiv updated 2011/07/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We study the single particle dynamics of a mobile non-Abelian anyon hopping around many pinned anyons on a surface, by modeling it with a discrete time quantum walk. During the evolution, the spatial degree of freedom of the mobile anyon becomes entangled with the fusion degrees of freedom of the collective system. Each quantum trajectory makes a closed braid on the world lines of the particles establishing a direct connection between statistical dynamics and quantum link invariants. We find that asymptotically a mobile Ising model anyon becomes so entangled with its environment that its statistical dynamics reduces to a classical random walk with linear dispersion in contrast to particles with Abelian statistics which have quadratic dispersion.