Avoiding local minima in variational quantum eigensolvers with the natural gradient optimizer
We compare the bfgs optimizer, adam and NatGrad in the context of vqes. We systematically analyze their performance on the qaoa ansatz for the transverse field Ising and the XXZ model as well as on overparametrized circuits with the ability to break the symmetry of the Hamiltonian. The bfgs algorith...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2020-11-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.2.043246 |