Structure optimization for parameterized quantum circuits-Reference-Cited by-同舟云学术

Structure optimization for parameterized quantum circuits

Published:2021-01-28 Issue: Volume:5 Page:391
ISSN:2521-327X
Container-title:Quantum
language:en
Short-container-title:Quantum

Author:

Ostaszewski Mateusz¹²^ORCID,Grant Edward²³^ORCID,Benedetti Marcello²⁴^ORCID

Affiliation:

1. Institute of Theoretical and Applied Informatics, Polish Academy of Sciences, Bałtycka 5, 44-100 Gliwice, Poland

2. Department of Computer Science, University College London, WC1E 6BT London, United Kingdom

3. Rahko Limited, N4 3JP London, United Kingdom

4. Cambridge Quantum Computing Limited, CB2 1UB Cambridge, United Kingdom

Abstract

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.

Publisher

Verein zur Forderung des Open Access Publizierens in den Quantenwissenschaften

Subject

Physics and Astronomy (miscellaneous),Atomic and Molecular Physics, and Optics

Link

https://quantum-journal.org/papers/q-2021-01-28-391/pdf/

Reference27 articles.

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4. Marcello Benedetti, Delfina Garcia-Pintos, Oscar Perdomo, Vicente Leyton-Ortega, Yunseong Nam, and Alejandro Perdomo-Ortiz, ``A generative modeling approach for benchmarking and training shallow quantum circuits'' npj Quantum Information 5 (2019).

5. Marcello Benedetti, Edward Grant, Leonard Wossnig, and Simone Severini, ``Adversarial quantum circuit learning for pure state approximation'' New Journal of Physics 21, 043023 (2019).

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