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Iterative Retraining of Quantum Spin Models Using Recurrent Neural Networks

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arxiv 2003.06228 v1 pith:YYZZRNCR submitted 2020-03-09 physics.comp-ph cond-mat.dis-nncond-mat.str-el

Iterative Retraining of Quantum Spin Models Using Recurrent Neural Networks

classification physics.comp-ph cond-mat.dis-nncond-mat.str-el
keywords quantumretrainingsystemsdimensionsiterativelargelatticesmapping
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Modeling quantum many-body systems is enormously challenging due to the exponential scaling of Hilbert dimension with system size. Finding efficient compressions of the wavefunction is key to building scalable models. Here, we introduce iterative retraining, an approach for simulating bulk quantum systems that uses recurrent neural networks (RNNs). By mapping translations in the lattice vector to the time index of an RNN, we are able to efficiently capture the near translational invariance of large lattices. We show that we can use this symmetry mapping to simulate very large systems in one and two dimensions. We do so by 'growing' our model, iteratively retraining the same model on progressively larger lattices until edge effects become negligible. We argue that this scheme generalizes more naturally to higher dimensions than Density Matrix Renormalization Group.

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Parallel Scan Recurrent Neural Quantum States for Scalable Variational Monte Carlo

    cond-mat.str-el 2026-05 conditional novelty 7.0

    PSR-NQS makes recurrent neural quantum states scalable for variational Monte Carlo by using parallel scan recurrence, reaching accurate results on 52x52 two-dimensional lattices.

  2. Geometry-Induced Long-Range Correlations in Recurrent Neural Network Quantum States

    quant-ph 2026-04 conditional novelty 7.0

    Dilated RNN wave functions induce power-law correlations for the critical 1D transverse-field Ising model and the Cluster state, unlike the exponential decay of conventional RNN ansatze.

  3. Graph-Theoretic Analysis of Phase Optimization Complexity in Variational Wave Functions for Heisenberg Antiferromagnets

    cond-mat.str-el 2026-02 accept novelty 6.0

    Ground-state phase reconstruction for Heisenberg antiferromagnets with fixed amplitudes is equivalent to weighted Max-Cut on the Hilbert-space graph, establishing worst-case NP-hardness.

  4. Time-dependent Neural Galerkin Method for Quantum Dynamics

    quant-ph 2024-12 unverdicted novelty 5.0

    Presents a Neural Galerkin method that solves quantum dynamics globally via variational minimization of a Schrödinger loss, demonstrated on 1D/2D transverse-field Ising quenches showing non-thermalization in 2D.