Tytuł | Structure optimization for parameterized quantum circuits |
Publication Type | Journal Article |
Rok publikacji | 2021 |
Autorzy | Ostaszewski M, Grant E, Benedetti M |
Journal | Quantum |
Volume | 5 |
Start Page | 391 |
Date Published | 01/2021 |
Abstract | We propose an efficient method for simultaneously optimizing both the structureand parameter values of quantum circuits with only a small computational overhead.Shallow circuits that use structure optimization perform significantly better than cir-cuits that use parameter updates alone, making this method particularly suitable fornoisy intermediate-scale quantum computers. We demonstrate the method for optimiz-ing a variational quantum eigensolver for finding the ground states of Lithium Hydrideand the Heisenberg model in simulation, and for finding the ground state of Hydrogengas on the IBM Melbourne quantum computer. |
URL | https://quantum-journal.org/papers/q-2021-01-28-391/ |
DOI | 10.22331/q-2021-01-28-391 |