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- Mateusz Ostaszewski
- Institute of Theoretical and Applied Informatics, Polish Academy of Sciences, Bałtycka 5, 44-100 Gliwice, Poland
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- Edward Grant
- Department of Computer Science, University College London, WC1E 6BT London, United Kingdom
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- Marcello Benedetti
- Department of Computer Science, University College London, WC1E 6BT London, United Kingdom
説明
<jats:p>We propose an efficient method for simultaneously optimizing both the structure and parameter values of quantum circuits with only a small computational overhead. Shallow circuits that use structure optimization perform significantly better than circuits that use parameter updates alone, making this method particularly suitable for noisy intermediate-scale quantum computers. We demonstrate the method for optimizing a variational quantum eigensolver for finding the ground states of Lithium Hydride and the Heisenberg model in simulation, and for finding the ground state of Hydrogen gas on the IBM Melbourne quantum computer.</jats:p>
収録刊行物
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- Quantum
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Quantum 5 391-, 2021-01-28
Verein zur Forderung des Open Access Publizierens in den Quantenwissenschaften