利用可迁移的深度量子蒙特卡洛方法实现强关联系统的从头算几何优化 / Enabling ab initio geometry optimization of strongly correlated systems with transferable deep quantum Monte Carlo
1️⃣ 一句话总结
这篇论文提出了一种新方法,将可迁移的深度学习变分蒙特卡洛与高斯过程回归相结合,能够高效、高精度地探索强关联分子体系的势能面,从而实现对分子结构、化学反应路径乃至激发态的准确模拟。
A faithful description of chemical processes requires exploring extended regions of the molecular potential energy surface (PES), which remains challenging for strongly correlated systems. Transferable deep-learning variational Monte Carlo (VMC) offers a promising route by efficiently solving the electronic Schrödinger equation jointly across molecular geometries at consistently high accuracy, yet its stochastic nature renders direct exploration of molecular configuration space nontrivial. Here, we present a framework for highly accurate ab initio exploration of PESs that combines transferable deep-learning VMC with a cost-effective estimation of energies, forces, and Hessians. By continuously sampling nuclear configurations during VMC optimization of electronic wave functions, we obtain transferable descriptions that achieve zero-shot chemical accuracy within chemically relevant distributions of molecular geometries. Throughout the subsequent characterization of molecular configuration space, the PES is evaluated only sparsely, with local approximations constructed by estimating VMC energies and forces at sampled geometries and aggregating the resulting noisy data using Gaussian process regression. Our method enables accurate and efficient exploration of complex PES landscapes, including structure relaxation, transition-state searches, and minimum-energy pathways, for both ground and excited states. This opens the door to studying bond breaking, formation, and large structural rearrangements in systems with pronounced multi-reference character.
利用可迁移的深度量子蒙特卡洛方法实现强关联系统的从头算几何优化 / Enabling ab initio geometry optimization of strongly correlated systems with transferable deep quantum Monte Carlo
这篇论文提出了一种新方法,将可迁移的深度学习变分蒙特卡洛与高斯过程回归相结合,能够高效、高精度地探索强关联分子体系的势能面,从而实现对分子结构、化学反应路径乃至激发态的准确模拟。
源自 arXiv: 2603.25381