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Structure optimization for parameterized quantum circuits

delete2021-01-28
delete133
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OA
AI
M
Mateusz Ostaszewski *
E
Edward Grant
M
Marcello Benedetti
DOI:10.22331/q-2021-01-28-391delete
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Abstract

Abstract

En 中文
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.
Keywords:
EIGENSOLVER

Journal

Quantum cover
Quantum
IF:
5.4
Papers:
951
Citations:
1.0W

Organization

P
Polish Academy of Sciences
Scholars:
3.0W
Papers: 3.1W
Citations: 3.1W