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Oxford Quantum Talks Archive

Topological quantum computing with anyons

Eric Paquette, University of Oxford
Categories, Logic and Foundations of Physics IV, January 2009, Imperial College London

In nature one observes that in three space dimensions particles are either symmetric or antisymmetric under interchange. In two dimensions, however, a whole continuum of phases is possible; "anyon" is a term that describes quasi-particles in 2 dimensions that can acquire any phase when two or more of them are interchanged. Such peculiar property permits one to encode information in topological features of a system composed of many anyons. It has been suggested that such topological excitations could be used for robust quantum computation.

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