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Sponsored Artificial Intelligence: A Modern Approach, Global Edition Artificial Intelligence: A Modern Approach, Global Edition

Author

Steven R. White

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Preprint Sep 2026

Hartree-Fock Density-Matrix Renormalization Group for Very Long Chains

We formulate Hartree--Fock as a density-matrix renormalization group (DMRG) sweep of a single Slater determinant, assuming a density--density electron--electron interaction. We compress the occupied state and long-range interaction separately, reducing each sweep step to a small local Fock problem. Exchange is retained...

Steven R. White · 0 citations
Preprint Sep 2026

Reference-Density Hartree Screening for Gausslet Hamiltonians

Gausslets are among the few electronic-structure bases that permit the four-index electron--electron interaction to be replaced by an accurate two-index integral diagonal approximation (IDA). Near a many-electron nucleus, however, the nuclear attraction and core-electron Hartree field are individually large and substan...

Steven R. White · 0 citations

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