Quantum Reinforcement Learning: the Maze problem

Fuente: arXiv
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Main Authors: Pozza, Nicola Dalla, Buffoni, Lorenzo, Martina, Stefano, Caruso, Filippo
Format: Preprint
Published: 2021
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author Pozza, Nicola Dalla
Buffoni, Lorenzo
Martina, Stefano
Caruso, Filippo
author_facet Pozza, Nicola Dalla
Buffoni, Lorenzo
Martina, Stefano
Caruso, Filippo
contents Quantum Machine Learning (QML) is a young but rapidly growing field where quantum information meets machine learning. Here, we will introduce a new QML model generalizing the classical concept of Reinforcement Learning to the quantum domain, i.e. Quantum Reinforcement Learning (QRL). In particular we apply this idea to the maze problem, where an agent has to learn the optimal set of actions in order to escape from a maze with the highest success probability. To perform the strategy optimization, we consider an hybrid protocol where QRL is combined with classical deep neural networks. In particular, we find that the agent learns the optimal strategy in both the classical and quantum regimes, and we also investigate its behaviour in a noisy environment. It turns out that the quantum speedup does robustly allow the agent to exploit useful actions also at very short time scales, with key roles played by the quantum coherence and the external noise. This new framework has the high potential to be applied to perform different tasks (e.g. high transmission/processing rates and quantum error correction) in the new-generation Noisy Intermediate-Scale Quantum (NISQ) devices whose topology engineering is starting to become a new and crucial control knob for practical applications in real-world problems. This work is dedicated to the memory of Peter Wittek.
format Preprint
id arxiv_https___arxiv_org_abs_2108_04490
institution arXiv
publishDate 2021
record_format arxiv
spellingShingle Quantum Reinforcement Learning: the Maze problem
Pozza, Nicola Dalla
Buffoni, Lorenzo
Martina, Stefano
Caruso, Filippo
Quantum Physics
Disordered Systems and Neural Networks
Quantum Machine Learning (QML) is a young but rapidly growing field where quantum information meets machine learning. Here, we will introduce a new QML model generalizing the classical concept of Reinforcement Learning to the quantum domain, i.e. Quantum Reinforcement Learning (QRL). In particular we apply this idea to the maze problem, where an agent has to learn the optimal set of actions in order to escape from a maze with the highest success probability. To perform the strategy optimization, we consider an hybrid protocol where QRL is combined with classical deep neural networks. In particular, we find that the agent learns the optimal strategy in both the classical and quantum regimes, and we also investigate its behaviour in a noisy environment. It turns out that the quantum speedup does robustly allow the agent to exploit useful actions also at very short time scales, with key roles played by the quantum coherence and the external noise. This new framework has the high potential to be applied to perform different tasks (e.g. high transmission/processing rates and quantum error correction) in the new-generation Noisy Intermediate-Scale Quantum (NISQ) devices whose topology engineering is starting to become a new and crucial control knob for practical applications in real-world problems. This work is dedicated to the memory of Peter Wittek.
title Quantum Reinforcement Learning: the Maze problem
topic Quantum Physics
Disordered Systems and Neural Networks
url https://arxiv.org/abs/2108.04490