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大规模高精度量子化学模拟新范式:字节最新成果入选Nature子刊
机器之心· 2025-11-09 11:48
Core Insights - The article discusses the increasing reliance on computational methods in understanding material properties, particularly in fields like catalysis and clean energy [2] - A new quantum embedding framework, SIE+CCSD(T), has been developed to combine high-precision quantum chemistry with large-scale simulations, enabling accurate studies of complex materials [3][6] Group 1: SIE+CCSD(T) Framework - The SIE+CCSD(T) framework allows for the first time the application of "gold standard" CCSD(T) methods to real material systems containing thousands of electrons and hundreds of atoms [3][6] - This framework achieves linear computational scaling up to 392 atoms, demonstrating significant efficiency improvements through GPU optimization [4][6][15] - The SIE framework can combine different levels of high-precision algorithms, allowing researchers to adjust computational speed and accuracy as needed [6][12] Group 2: Performance and Accuracy - In a system with 392 carbon atoms and approximately 11,000 orbitals, SIE+CCSD(T) achieved "gold standard" accuracy while maintaining near-linear computational efficiency on GPUs [6][16] - The method consistently produced results within ±1 kcal/mol of experimental data across various real systems, indicating its reliability and potential as a universal tool [21][24] - The framework successfully reconciled results from different boundary conditions in large systems, showing convergence in adsorption energy for water on graphene [25] Group 3: Implications for Surface Chemistry - The study revealed that water molecules do not exhibit a preferred orientation when adsorbed on graphene, providing important insights for applications in blue energy and water desalination [24][26] - The SIE+CCSD(T) framework addresses the limitations of traditional quantum chemistry methods, enabling accurate simulations of surface chemistry at a larger scale [8][26] - The findings contribute to a better understanding of molecular adsorption on surfaces, which is critical for material design and surface mechanism exploration [26]