Optimizing Variational Quantum Algorithms Using Pontryagin’s Minimum Principle

We use Pontryagin’s minimum principle to optimize variational quantum algorithms. We show that for a fixed computation time, the optimal evolution has a bang-bang (square pulse) form, both for closed and open quantum systems with Markovian decoherence. Our findings support the choice of evolution an...

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Bibliographic Details
Published in:	Physical review. X Vol. 7; no. 2; p. 021027
Main Authors:	Yang, Zhi-Cheng, Rahmani, Armin, Shabani, Alireza, Neven, Hartmut, Chamon, Claudio
Format:	Journal Article
Language:	English
Published:	College Park American Physical Society 18.05.2017
Subjects:	Algorithms CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS Combinatorial analysis Computing costs Control systems Control theory Coupling Data processing Digital computers Evolutionary algorithms Feedback control Optimization Parameter identification Parameterization Quantum computers Quantum computing Quantum phenomena Quantum theory Spin glasses Switches Thermal baths Time
ISSN:	2160-3308, 2160-3308
Online Access:	Get full text
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