Overcoming the Barrier of Orbital-Free Density Functional Theory for Molecular Systems Using Deep Learning

arXiv:2309.16578v2 Announce Type: replace-cross
Abstract: Orbital-free density functional theory (OFDFT) is a quantum chemistry formulation that has a lower cost scaling than the prevailing Kohn-Sham DFT, which is increasingly desired for contemporary molecular research. However, its accuracy is limited by the kinetic energy density functional, which is notoriously hard to approximate for non-periodic molecular systems. Here we propose M-OFDFT, an OFDFT approach capable of solving molecular systems using a deep learning functional model. We build the essential non-locality into the …

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