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Title: Identifying the minor set cover of dense connected bipartite graphs via random matching edge sets

Journal Article · · Quantum Information Processing
 [1];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Computer Science Mathematics Division

Using quantum annealing to solve an optimization problem requires minor embedding a logic graph into a known hardware graph. We introduce the minor set cover (MSC) of a known graph GG : a subset of graph minors which contain any remaining minor of the graph as a subgraph, in an effort to reduce the complexity of the minor embedding problem. Any graph that can be embedded into GG will be embeddable into a member of the MSC. Focusing on embedding into the hardware graph of commercially available quantum annealers, we establish the MSC for a particular known virtual hardware, which is a complete bipartite graph. Furthermore, we show that the complete bipartite graph KN,N has a MSC of N minors, from which KN+1 is identified as the largest clique minor of KN,N. In the case of determining the largest clique minor of hardware with faults we briefly discussed this open question.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1361309
Journal Information:
Quantum Information Processing, Vol. 16, Issue 4; ISSN 1570-0755
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 12 works
Citation information provided by
Web of Science

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Cited By (5)

Optimizing adiabatic quantum program compilation using a graph-theoretic framework journal April 2018
Efficiently embedding QUBO problems on adiabatic quantum computers journal March 2019
Improving solutions by embedding larger subproblems in a D-Wave quantum annealer journal February 2019
Embedding Equality Constraints of Optimization Problems into a Quantum Annealer journal April 2019
Improving solutions by embedding larger subproblems in a D-Wave quantum annealer text January 2019

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