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Main Authors: Meinerz, Kai, Trebst, Simon, Rudner, Mark, van Nieuwenburg, Evert
Format: Preprint
Published: 2023
Subjects:
Online Access:https://arxiv.org/abs/2311.00756
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author Meinerz, Kai
Trebst, Simon
Rudner, Mark
van Nieuwenburg, Evert
author_facet Meinerz, Kai
Trebst, Simon
Rudner, Mark
van Nieuwenburg, Evert
contents Feedback-based control is the de-facto standard when it comes to controlling classical stochastic systems and processes. However, standard feedback-based control methods are challenged by quantum systems due to measurement induced backaction and partial observability. Here we remedy this by using weak quantum measurements and model-free reinforcement learning agents to perform quantum control. By comparing control algorithms with and without state estimators to stabilize a quantum particle in an unstable state near a local potential energy maximum, we show how a trade-off between state estimation and controllability arises. For the scenario where the classical analogue is highly nonlinear, the reinforcement learned controller has an advantage over the standard controller. Additionally, we demonstrate the feasibility of using transfer learning to develop a quantum control agent trained via reinforcement learning on a classical surrogate of the quantum control problem. Finally, we present results showing how the reinforcement learning control strategy differs from the classical controller in the non-linear scenarios.
format Preprint
id arxiv_https___arxiv_org_abs_2311_00756
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle The Quantum Cartpole: A benchmark environment for non-linear reinforcement learning
Meinerz, Kai
Trebst, Simon
Rudner, Mark
van Nieuwenburg, Evert
Quantum Physics
Feedback-based control is the de-facto standard when it comes to controlling classical stochastic systems and processes. However, standard feedback-based control methods are challenged by quantum systems due to measurement induced backaction and partial observability. Here we remedy this by using weak quantum measurements and model-free reinforcement learning agents to perform quantum control. By comparing control algorithms with and without state estimators to stabilize a quantum particle in an unstable state near a local potential energy maximum, we show how a trade-off between state estimation and controllability arises. For the scenario where the classical analogue is highly nonlinear, the reinforcement learned controller has an advantage over the standard controller. Additionally, we demonstrate the feasibility of using transfer learning to develop a quantum control agent trained via reinforcement learning on a classical surrogate of the quantum control problem. Finally, we present results showing how the reinforcement learning control strategy differs from the classical controller in the non-linear scenarios.
title The Quantum Cartpole: A benchmark environment for non-linear reinforcement learning
topic Quantum Physics
url https://arxiv.org/abs/2311.00756