Predicting RNA Secondary Structure on Universal Quantum Computer

• URL: http://arxiv.org/abs/2305.09561v2
• Date: Wed, 17 May 2023 07:52:10 GMT
• Title: Predicting RNA Secondary Structure on Universal Quantum Computer
• Authors: Ji Jiang, Qipeng Yan, Ye Li, Min Lu, Ziwei Cui, Menghan Dou, Qingchun Wang, Yu-Chun Wu and Guo-Ping Guo
• Abstract summary: It is the first step for understanding how RNA structure folds from base sequences that to know how its secondary structure is formed. Traditional energy-based algorithms are short of precision, particularly for non-nested sequences. Gate model algorithms for universal quantum computing are not available.
• Score: 2.277461161767121
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: It is the first step for understanding how RNA structure folds from base sequences that to know how its secondary structure is formed. Traditional energy-based algorithms are short of precision, particularly for non-nested sequences, while learning-based algorithms face challenges in obtaining high-quality training data. Recently, quantum annealer has rapidly predicted the folding of the secondary structure, highlighting that quantum computing is a promising solution to this problem. However, gate model algorithms for universal quantum computing are not available. In this paper, gate-based quantum algorithms will be presented, which are highly flexible and can be applied to various physical devices. Mapped all possible secondary structure to the state of a quadratic Hamiltonian, the whole folding process is described as a quadratic unconstrained binary optimization model. Then the model can be solved through quantum approximation optimization algorithm. We demonstrate the performance with both numerical simulation and experimental realization. Throughout our benchmark dataset, simulation results suggest that our quantum approach is comparable in accuracy to classical methods. For non-nested sequences, our quantum approach outperforms classical energy-based methods. Experimental results also indicate our method is robust in current noisy devices. It is the first instance of universal quantum algorithms being employed to tackle RNA folding problems, and our work provides a valuable model for utilizing universal quantum computers in solving RNA folding problems.

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