Structure optimization for parameterized quantum circuits

TytułStructure optimization for parameterized quantum circuits
Publication TypeJournal Article
Rok publikacji2021
AutorzyOstaszewski M, Grant E, Benedetti M
JournalQuantum
Volume5
Start Page391
Date Published01/2021
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.

URLhttps://quantum-journal.org/papers/q-2021-01-28-391/
DOI10.22331/q-2021-01-28-391

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