Braid Group, Temperley--Lieb Algebra, and Quantum Information and Computation

Details Braid Group, Temperley--Lieb Algebra, and Quantum Information and Computation Braid Group, Temperley--Lieb Algebra, and Quantum Information and Computation

2006-01-09

arxiv.org/abs/quant-ph/0601050v3

AMS Contemporary Mathematics, Vol 482 (2009) 51-92

Physics

Quantum Physics

v1,v2: 50 pages, 29 figures, Latex; v3: 47 pages, 30 figures, Latex

Scientific paper

In this paper, we explore algebraic structures and low dimensional topology underlying quantum information and computation. We revisit quantum teleportation from the perspective of the braid group, the symmetric group and the virtual braid group, and propose the braid teleportation, the teleportation swapping and the virtual braid teleportation, respectively. Besides, we present a physical interpretation for the braid teleportation and explain it as a sort of crossed measurement. On the other hand, we propose the extended Temperley--Lieb diagrammatical approach to various topics including quantum teleportation, entanglement swapping, universal quantum computation, quantum information flow, and etc. The extended Temperley--Lieb diagrammatical rules are devised to present a diagrammatical representation for the extended Temperley--Lieb category which is the collection of all the Temperley--Lieb algebras with local unitary transformations. In this approach, various descriptions of quantum teleportation are unified in a diagrammatical sense, universal quantum computation is performed with the help of topological-like features, and quantum information flow is recast in a correct formulation. In other words, we propose the extended Temperley--Lieb category as a mathematical framework to describe quantum information and computation involving maximally entangled states and local unitary transformations.

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