Anyonic quantum walks
- Centre for Quantum Information Science and Security, Macquarie University, 2109, NSW (Australia)
- Department of Sciences, Division of Mathematics, Technical University of Crete, GR - 73 100, Chania, Crete (Greece)
- School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT (United Kingdom)
- Microsoft Research, Station Q, University of California, Santa Barbara, CA 93106 (United States)
The one dimensional quantum walk of anyonic systems is presented. The anyonic walker performs braiding operations with stationary anyons of the same type ordered canonically on the line of the walk. Abelian as well as non-Abelian anyons are studied and it is shown that they have very different properties. Abelian anyonic walks demonstrate the expected quadratic quantum speedup. Non-Abelian anyonic walks are much more subtle. The exponential increase of the system's Hilbert space and the particular statistical evolution of non-Abelian anyons give a variety of new behaviors. The position distribution of the walker is related to Jones polynomials, topological invariants of the links created by the anyonic world-lines during the walk. Several examples such as the SU(2){sub k} and the quantum double models are considered that provide insight to the rich diffusion properties of anyons.
- OSTI ID:
- 21336110
- Journal Information:
- Annals of Physics (New York), Vol. 325, Issue 3; Other Information: DOI: 10.1016/j.aop.2009.12.001; PII: S0003-4916(09)00229-2; Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-4916
- Country of Publication:
- United States
- Language:
- English
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