Parallel Scan Recurrent Neural Quantum States for Scalable Variational Monte Carlo

Fuente: arXiv
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Autori principali: Merali, Ejaaz, Hibat-Allah, Mohamed, Kohandel, Mohammad, Scalettar, Richard T., Khatami, Ehsan
Natura: Preprint
Pubblicazione: 2026
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author Merali, Ejaaz
Hibat-Allah, Mohamed
Kohandel, Mohammad
Scalettar, Richard T.
Khatami, Ehsan
author_facet Merali, Ejaaz
Hibat-Allah, Mohamed
Kohandel, Mohammad
Scalettar, Richard T.
Khatami, Ehsan
contents Neural-network quantum states have emerged as a powerful variational framework for quantum many-body systems, with recent progress often driven by massively parallel architectures such as transformers. Recurrent neural network quantum states, however, are frequently regarded as intrinsically sequential and therefore less scalable. Here we revisit this view by showing that modern recurrent architectures can support fast, accurate, and computationally accessible neural quantum state simulations. Using autoregressive recurrent wave functions together with recent advances in parallelizable recurrence, we develop variational ansätze, called parallel scan recurrent neural quantum states (PSR-NQS), which can be trained efficiently within variational Monte Carlo in one and two spatial dimensions. We demonstrate accurate benchmark results and show that, with iterative retraining, our approach reaches two-dimensional spin lattices as large as $52\times52$ while remaining in agreement with available quantum Monte Carlo data. Our results establish recurrent architectures as a practical and promising route toward scalable neural quantum state simulations with modest computational resources.
format Preprint
id arxiv_https___arxiv_org_abs_2605_13807
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Parallel Scan Recurrent Neural Quantum States for Scalable Variational Monte Carlo
Merali, Ejaaz
Hibat-Allah, Mohamed
Kohandel, Mohammad
Scalettar, Richard T.
Khatami, Ehsan
Strongly Correlated Electrons
Disordered Systems and Neural Networks
Machine Learning
Computational Physics
Quantum Physics
Neural-network quantum states have emerged as a powerful variational framework for quantum many-body systems, with recent progress often driven by massively parallel architectures such as transformers. Recurrent neural network quantum states, however, are frequently regarded as intrinsically sequential and therefore less scalable. Here we revisit this view by showing that modern recurrent architectures can support fast, accurate, and computationally accessible neural quantum state simulations. Using autoregressive recurrent wave functions together with recent advances in parallelizable recurrence, we develop variational ansätze, called parallel scan recurrent neural quantum states (PSR-NQS), which can be trained efficiently within variational Monte Carlo in one and two spatial dimensions. We demonstrate accurate benchmark results and show that, with iterative retraining, our approach reaches two-dimensional spin lattices as large as $52\times52$ while remaining in agreement with available quantum Monte Carlo data. Our results establish recurrent architectures as a practical and promising route toward scalable neural quantum state simulations with modest computational resources.
title Parallel Scan Recurrent Neural Quantum States for Scalable Variational Monte Carlo
topic Strongly Correlated Electrons
Disordered Systems and Neural Networks
Machine Learning
Computational Physics
Quantum Physics
url https://arxiv.org/abs/2605.13807