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Title: Analytic continuation of noisy data using Adams Bashforth residual neural network

Abstract

We propose a data-driven learning framework for the analytic continuation problem in numerical quantum many-body physics. Designing an accurate and efficient framework for the analytic continuation of imaginary time using computational data is a grand challenge that has hindered meaningful links with experimental data. The standard Maximum Entropy (MaxEnt)-based method is limited by the quality of the computational data and the availability of prior information. Also, the MaxEnt is not able to solve the inversion problem under high level of noise in the data. Here we introduce a novel learning model for the analytic continuation problem using a Adams-Bashforth residual neural network (AB-ResNet). Additionally, the advantage of this deep learning network is that it is model independent and, therefore, does not require prior information concerning the quantity of interest given by the spectral function. More importantly, the ResNet-based model achieves higher accuracy than MaxEnt for data with higher level of noise. Finally, numerical examples show that the developed AB-ResNet is able to recover the spectral function with accuracy comparable to MaxEnt where the noise level is relatively small.

Authors:
 [1];  [2]; ORCiD logo [3]; ORCiD logo [4]
  1. New York Univ. (NYU), NY (United States)
  2. Florida State Univ., Tallahassee, FL (United States)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  4. Univ. of Tennessee, Knoxville, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division; USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR). Scientific Discovery through Advanced Computing (SciDAC)
OSTI Identifier:
1814399
Grant/Contract Number:  
AC05-00OR22725; DMS-1620280
Resource Type:
Accepted Manuscript
Journal Name:
Discrete and Continuous Dynamical Systems - Series S
Additional Journal Information:
Journal Volume: 15; Journal Issue: 4; Journal ID: ISSN 1937-1632
Publisher:
American Institute of Mathematical Sciences (AIMS)
Country of Publication:
United States
Language:
English
Subject:
97 MATHEMATICS AND COMPUTING; analytic continuation; inverse problem; stochastic optimization; machine learning; neural network

Citation Formats

Xie, Xuping, Bao, Feng, Maier, Thomas, and Webster, Clayton. Analytic continuation of noisy data using Adams Bashforth residual neural network. United States: N. p., 2021. Web. doi:10.3934/dcdss.2021088.
Xie, Xuping, Bao, Feng, Maier, Thomas, & Webster, Clayton. Analytic continuation of noisy data using Adams Bashforth residual neural network. United States. https://doi.org/10.3934/dcdss.2021088
Xie, Xuping, Bao, Feng, Maier, Thomas, and Webster, Clayton. Thu . "Analytic continuation of noisy data using Adams Bashforth residual neural network". United States. https://doi.org/10.3934/dcdss.2021088. https://www.osti.gov/servlets/purl/1814399.
@article{osti_1814399,
title = {Analytic continuation of noisy data using Adams Bashforth residual neural network},
author = {Xie, Xuping and Bao, Feng and Maier, Thomas and Webster, Clayton},
abstractNote = {We propose a data-driven learning framework for the analytic continuation problem in numerical quantum many-body physics. Designing an accurate and efficient framework for the analytic continuation of imaginary time using computational data is a grand challenge that has hindered meaningful links with experimental data. The standard Maximum Entropy (MaxEnt)-based method is limited by the quality of the computational data and the availability of prior information. Also, the MaxEnt is not able to solve the inversion problem under high level of noise in the data. Here we introduce a novel learning model for the analytic continuation problem using a Adams-Bashforth residual neural network (AB-ResNet). Additionally, the advantage of this deep learning network is that it is model independent and, therefore, does not require prior information concerning the quantity of interest given by the spectral function. More importantly, the ResNet-based model achieves higher accuracy than MaxEnt for data with higher level of noise. Finally, numerical examples show that the developed AB-ResNet is able to recover the spectral function with accuracy comparable to MaxEnt where the noise level is relatively small.},
doi = {10.3934/dcdss.2021088},
journal = {Discrete and Continuous Dynamical Systems - Series S},
number = 4,
volume = 15,
place = {United States},
year = {Thu Apr 01 00:00:00 EDT 2021},
month = {Thu Apr 01 00:00:00 EDT 2021}
}

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