Authors
Andrea Skolik, Jarrod R McClean, Masoud Mohseni, Patrick Van Der Smagt, Martin Leib
Publication date
2021/6
Journal
Quantum Machine Intelligence
Volume
3
Pages
1-11
Publisher
Springer International Publishing
Description
With the increased focus on quantum circuit learning for near-term applications on quantum devices, in conjunction with unique challenges presented by cost function landscapes of parametrized quantum circuits, strategies for effective training are becoming increasingly important. In order to ameliorate some of these challenges, we investigate a layerwise learning strategy for parametrized quantum circuits. The circuit depth is incrementally grown during optimization, and only subsets of parameters are updated in each training step. We show that when considering sampling noise, this strategy can help avoid the problem of barren plateaus of the error surface due to the low depth of circuits, low number of parameters trained in one step, and larger magnitude of gradients compared to training the full circuit. These properties make our algorithm preferable for execution on noisy intermediate-scale quantum …
Total citations
20202021202220232024564788929
Scholar articles
A Skolik, JR McClean, M Mohseni, P Van Der Smagt… - Quantum Machine Intelligence, 2021