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Bibliographic Details
Main Authors: Preti, Francesco, Schilling, Michael, Jerbi, Sofiene, Trenkwalder, Lea M., Nautrup, Hendrik Poulsen, Motzoi, Felix, Briegel, Hans J.
Format: Preprint
Published: 2023
Subjects:
Online Access:https://arxiv.org/abs/2307.05744
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Table of Contents:
  • Shortening quantum circuits is crucial to reducing the destructive effect of environmental decoherence and enabling useful algorithms. Here, we demonstrate an improvement in such compilation tasks via a combination of using hybrid discrete-continuous optimization across a continuous gate set, and architecture-tailored implementation. The continuous parameters are discovered with a gradient-based optimization algorithm, while in tandem the optimal gate orderings are learned via a deep reinforcement learning algorithm, based on projective simulation. To test this approach, we introduce a framework to simulate collective gates in trapped-ion systems efficiently on a classical device. The algorithm proves able to significantly reduce the size of relevant quantum circuits for trapped-ion computing. Furthermore, we show that our framework can also be applied to an experimental setup whose goal is to reproduce an unknown unitary process.