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The underlying digraph of a coined quantum random walk

Severini, S; (2002) The underlying digraph of a coined quantum random walk.

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Abstract

We give a characterization of the line digraph of a regular digraph. We make use of the characterization, to show that the underlying digraph of a coined quantum random walk is a line digraph. We remark the connection between line digraphs and in-split graphs in symbolic dynamics.

Type:Article
Title:The underlying digraph of a coined quantum random walk
Additional information:11 pages
UCL classification:UCL > School of BEAMS > Faculty of Engineering Science > Computer Science

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