Neural Monte Carlo renormalization group

The key idea behind the renormalization group (RG) transformation is that properties of physical systems with very different microscopic makeups can be characterized by a few universal parameters. However, finding a systematic way to construct RG transformation for particular systems remains difficu...

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Main Authors: Jui-Hui Chung, Ying-Jer Kao
Format: Article
Language:English
Published: American Physical Society 2021-06-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.3.023230
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author Jui-Hui Chung
Ying-Jer Kao
author_facet Jui-Hui Chung
Ying-Jer Kao
author_sort Jui-Hui Chung
collection DOAJ
description The key idea behind the renormalization group (RG) transformation is that properties of physical systems with very different microscopic makeups can be characterized by a few universal parameters. However, finding a systematic way to construct RG transformation for particular systems remains difficult due to the many possible choices of the weight factors in the RG procedure. Here we show, by identifying the conditional distribution in the restricted Boltzmann machine and the weight factor distribution in the RG procedure, that a valid real-space RG transformation can be learned without prior knowledge of the physical system. This neural Monte Carlo RG algorithm allows for direct computation of the RG flow and critical exponents. Our results establish a solid connection between the RG transformation in physics and the deep architecture in machine learning, paving the way for further interdisciplinary research.
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spelling doaj.art-6205cdfc63b745d587a7deba2a8a7d932024-04-12T17:11:03ZengAmerican Physical SocietyPhysical Review Research2643-15642021-06-013202323010.1103/PhysRevResearch.3.023230Neural Monte Carlo renormalization groupJui-Hui ChungYing-Jer KaoThe key idea behind the renormalization group (RG) transformation is that properties of physical systems with very different microscopic makeups can be characterized by a few universal parameters. However, finding a systematic way to construct RG transformation for particular systems remains difficult due to the many possible choices of the weight factors in the RG procedure. Here we show, by identifying the conditional distribution in the restricted Boltzmann machine and the weight factor distribution in the RG procedure, that a valid real-space RG transformation can be learned without prior knowledge of the physical system. This neural Monte Carlo RG algorithm allows for direct computation of the RG flow and critical exponents. Our results establish a solid connection between the RG transformation in physics and the deep architecture in machine learning, paving the way for further interdisciplinary research.http://doi.org/10.1103/PhysRevResearch.3.023230
spellingShingle Jui-Hui Chung
Ying-Jer Kao
Neural Monte Carlo renormalization group
Physical Review Research
title Neural Monte Carlo renormalization group
title_full Neural Monte Carlo renormalization group
title_fullStr Neural Monte Carlo renormalization group
title_full_unstemmed Neural Monte Carlo renormalization group
title_short Neural Monte Carlo renormalization group
title_sort neural monte carlo renormalization group
url http://doi.org/10.1103/PhysRevResearch.3.023230
work_keys_str_mv AT juihuichung neuralmontecarlorenormalizationgroup
AT yingjerkao neuralmontecarlorenormalizationgroup