Abstract

Topological quantum computation may provide a robust approach for encoding and manipulating information utilizing the topological properties of anyonic quasiparticle excitations. We develop an efficient means to map between dense and sparse representations of quantum information (qubits) and a simple construction of multiqubit gates, for all anyon models from Chern-Simons-Witten SU(2)(k) theory that support universal quantum computation by braiding (k >= 3, k not equal 4). In the process, we show how the constructions of topological quantum memory and gates for k = 2,4 connect naturally to those for k >= 3, k not equal 4, unifying these concepts in a simple framework. Furthermore, we illustrate potential extensions of these ideas to other anyon models outside of Chern-Simons-Witten field theory.

Publication Details
Publication Type
Journal Article
Year of Publication
2011
Volume
84
DOI
10.1103/PhysRevA.84.012332
Journal
Physical Review A
Contributors