Extending the reach of quantum computing for materials science with machine learning potentials

• URL: http://arxiv.org/abs/2203.07219v1
• Date: Mon, 14 Mar 2022 15:59:30 GMT
• Title: Extending the reach of quantum computing for materials science with machine learning potentials
• Authors: Julian Schuhmacher, Guglielmo Mazzola, Francesco Tacchino, Olga Dmitriyeva, Tai Bui, Shanshan Huang, Ivano Tavernelli
• Abstract summary: We propose a strategy to extend the scope of quantum computational methods to large scale simulations using a machine learning potential. We investigate the trainability of a machine learning potential selecting various sources of noise. We construct the first machine learning potential from data computed on actual IBM Quantum processors for a hydrogen molecule.
• Score: 0.3352108528371308
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Solving electronic structure problems represents a promising field of application for quantum computers. Currently, much effort has been spent in devising and optimizing quantum algorithms for quantum chemistry problems featuring up to hundreds of electrons. While quantum algorithms can in principle outperform their classical equivalents, the polynomially scaling runtime, with the number of constituents, can still prevent quantum simulations of large scale systems. We propose a strategy to extend the scope of quantum computational methods to large scale simulations using a machine learning potential, trained on quantum simulation data. The challenge of applying machine learning potentials in today's quantum setting arises from the several sources of noise affecting the quantum computations of electronic energies and forces. We investigate the trainability of a machine learning potential selecting various sources of noise: statistical, optimization and hardware noise.Finally, we construct the first machine learning potential from data computed on actual IBM Quantum processors for a hydrogen molecule. This already would allow us to perform arbitrarily long and stable molecular dynamics simulations, outperforming all current quantum approaches to molecular dynamics and structure optimization.

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