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Logical qubit implementation for quantum annealing

Published on:

29 January 2023

Primary Category:

Quantum Physics

Paper Authors:

Hristo N. Djidjev

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Key Details

Proposes optimization-based method for logical qubit implementation using augmented Lagrangian

Frames the problem as constrained optimization and solves via ALM

Experiments show it outperforms prior methods in minimizing chain breaks

Finds better solutions on maximum clique problems compared to other techniques

AI generated summary

Logical qubit implementation for quantum annealing

This paper proposes an optimization-based approach to generate suitable representations of logical qubits for quantum annealing. Logical qubits, implemented as chains of physical qubits, help map problems onto quantum hardware. The paper frames logical qubit implementation as a constrained optimization problem and solves it via the augmented Lagrangian method. Experiments on random graph maximum clique problems demonstrated the proposed technique's advantages over prior methods in minimizing chain breaks and finding better solutions.

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