Quantum Information Processing

, Volume 10, Issue 3, pp 343–353 | Cite as

Minor-embedding in adiabatic quantum computation: II. Minor-universal graph design

  • Vicky ChoiEmail author


In Choi (Quantum Inf Process, 7:193–209, 2008), we introduced the notion of minor-embedding in adiabatic quantum optimization. A minor-embedding of a graph G in a quantum hardware graph U is a subgraph of U such that G can be obtained from it by contracting edges. In this paper, we describe the intertwined adiabatic quantum architecture design problem, which is to construct a hardware graph U that satisfies all known physical constraints and, at the same time, permits an efficient minor-embedding algorithm. We illustrate an optimal complete-graph-minor hardware graph. Given a family \({\mathcal{F}}\) of graphs, a (host) graph U is called \({\mathcal{F}}\)-minor-universal if for each graph G in \({\mathcal{F}, U}\) contains a minor-embedding of G. The problem for designing a \({{\mathcal{F}}}\)-minor-universal hardware graph U sparse in which \({{\mathcal{F}}}\) consists of a family of sparse graphs (e.g., bounded degree graphs) is open.


Adiabatic Quantum Computation Graph Minor Minor-Embedding Universal Graph Adiabatic Quantum Architecture Design 


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© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  1. 1.Department of Computer ScienceVirginia TechFalls ChurchUSA

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