Deep Neural Network Model for Approximating Eigenmodes Localized by a Confining Potential

Grubišić, Luka and Hajba, Marko and Lacmanović, Domagoj (2021) Deep Neural Network Model for Approximating Eigenmodes Localized by a Confining Potential. Entropy, 23 (1). p. 95. ISSN 1099-4300

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Abstract

We study eigenmode localization for a class of elliptic reaction-diffusion operators. As the prototype model problem we use a family of Schrödinger Hamiltonians parametrized by random potentials and study the associated effective confining potential. This problem is posed in the finite domain and we compute localized bounded states at the lower end of the spectrum. We present several deep network architectures that predict the localization of bounded states from a sample of a potential. For tackling higher dimensional problems, we consider a class of physics-informed deep dense networks. In particular, we focus on the interpretability of the proposed approaches. Deep network is used as a general reduced order model that describes the nonlinear connection between the potential and the ground state. The performance of the surrogate reduced model is controlled by an error estimator and the model is updated if necessary. Finally, we present a host of experiments to measure the accuracy and performance of the proposed algorithm. View Full-Text

Item Type: Article
Uncontrolled Keywords: Anderson localization; deep neural networks; residual error estimates; physics informed neural networks
Subjects: STM Repository > Physics and Astronomy
Depositing User: Managing Editor
Date Deposited: 26 May 2023 09:52
Last Modified: 02 May 2024 09:20
URI: http://classical.goforpromo.com/id/eprint/457

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