A Quantum Algorithm for the Sub-graph Isomorphism Problem

被引:2
|
作者
Mariella, Nicola [1 ]
Simonetto, Andrea [2 ,3 ]
机构
[1] IBM Res Europe Ireland, IBM Technol Campus,Damastown Ind Pk, Mulhuddart D15 HN66, Dublin, Ireland
[2] ENSTA Paris, Inst Polytech Paris, UMA, Palaiseau, France
[3] ENSTA, Inst Polytech Paris, UMA, 828 Blvd Marechaux, F-91762 Palaiseau, France
来源
关键词
Optimization; quantum computing; SUBGRAPH ISOMORPHISM; INTERFERENCE;
D O I
10.1145/3569095
中图分类号
TP301 [理论、方法];
学科分类号
081202 ;
摘要
We propose a novel variational method for solving the sub-graph isomorphism problem on a gate-based quantum computer. The method relies (1) on a new representation of the adjacency matrices of the underlying graphs, which requires a number of qubits that scales logarithmically with the number of vertices of the graphs; and (2) on a new ansatz that can efficiently probe the permutation space. Simulations are then presented to showcase the approach on graphs up to 16 vertices, whereas, given the logarithmic scaling, the approach could be applied to realistic sub-graph isomorphism problem instances in the medium term.
引用
收藏
页数:34
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