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The 3-dimensional cube is the only periodic, connected cubic graph with perfect state transfer

Severini, S; (2010) The 3-dimensional cube is the only periodic, connected cubic graph with perfect state transfer. QUANTUM GROUPS, QUANTUM FOUNDATIONS, AND QUANTUM INFORMATION: A FESTSCHRIFT FOR TONY SUDBERY , 254 , Article 012012. 10.1088/1742-6596/254/1/012012. Gold open access

Abstract

There is perfect state transfer between two vertices of a graph, if a single excitation can travel with fidelity one between the corresponding sites of a spin system modeled by the graph. When the excitation is back at the initial site, for all sites at the same time, the graph is said to be periodic. A graph is cubic if each of its vertices has a neighbourhood of size exactly three. We prove that the 3-dimensional cube is the only periodic, connected cubic graph with perfect state transfer. We conjecture that this is also the only connected cubic graph with perfect state transfer.

Type: Article
Title: The 3-dimensional cube is the only periodic, connected cubic graph with perfect state transfer
Location: Univ York, York, ENGLAND
Open access status: An open access publication
DOI: 10.1088/1742-6596/254/1/012012
Keywords: CHAIN
UCL classification: UCL > School of BEAMS > Faculty of Engineering Science > Computer Science
URI: http://discovery.ucl.ac.uk/id/eprint/404740
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