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With the slow progress of universal quantum computers, studies on the feasibility of optimization by a dedicated and quantum-annealing-based annealer are important. The quantum principle is expected to utilize the quantum tunneling effects to find the optimal solutions for the exponential-level problems while classical annealing may be affected by the initializations. This study constructs a new Quantum-Inspired Annealing (QIA) framework to explore the potentials of quantum annealing for solving Ising model with comparisons to the classical one. Through various configurations of the 1D Ising model, the new framework can achieve ground state, corresponding to the optimum of classical problems, with higher probability up to 28% versus classical counterpart (22% in case). This condition not only reveals the potential of quantum annealing for solving the Ising-like Hamiltonian, but also contributes to an improved understanding and use of the quantum annealer for various applications in the future.


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Optimization of Quantum Computing Models Inspired by D-Wave Quantum Annealing

Show Author's information Baonan WangFeng HuChao Wang( )
Key laboratory of Specialty Fiber Optics and Optical Access Networks, Joint International Research Laboratory of Specialty Fiber Optics and Advanced Communication, Shanghai Institute for Advanced Communication and Data Science, Shanghai University, Shanghai 200444, China
State Key Laboratory of Cryptology, Beijing 100878, China.
Center for Quantum Computing, Peng Cheng Laboratory, Shenzhen 518000, China.

Abstract

With the slow progress of universal quantum computers, studies on the feasibility of optimization by a dedicated and quantum-annealing-based annealer are important. The quantum principle is expected to utilize the quantum tunneling effects to find the optimal solutions for the exponential-level problems while classical annealing may be affected by the initializations. This study constructs a new Quantum-Inspired Annealing (QIA) framework to explore the potentials of quantum annealing for solving Ising model with comparisons to the classical one. Through various configurations of the 1D Ising model, the new framework can achieve ground state, corresponding to the optimum of classical problems, with higher probability up to 28% versus classical counterpart (22% in case). This condition not only reveals the potential of quantum annealing for solving the Ising-like Hamiltonian, but also contributes to an improved understanding and use of the quantum annealer for various applications in the future.

Keywords: Quantum Annealing (QA), annealing schedule, quantum tunneling, optimization problem

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Publication history

Received: 27 June 2019
Revised: 27 June 2019
Accepted: 17 July 2019
Published: 13 January 2020
Issue date: August 2020

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© The author(s) 2020

Acknowledgements

This study was supported by the Special Zone Project of National Defense Innovation, the National Natural Science Foundation of China (Nos. 61572304 and 61272096), the Key Program of the National Natural Science Foundation of China (No. 61332019), and Open Research Fund of State Key Laboratory of Cryptology.

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