Quantum paraelectricity and structural phase transitions in strontium titanate beyond density functional theory

C Verdi, L Ranalli, C Franchini, G Kresse - Physical Review Materials, 2023 - APS
We demonstrate an approach for calculating temperature-dependent quantum and
anharmonic effects with beyond density-functional theory accuracy. By combining machine …

Accurate total energies from the adiabatic-connection fluctuation-dissipation theorem

ND Woods, MT Entwistle, RW Godby - Physical Review B, 2021 - APS
In the context of inhomogeneous one-dimensional finite systems, recent numerical
advances [Phys. Rev. B 103, 125155 (2021) 2469-9950 10.1103/PhysRevB. 103.125155] …

Achieving Accurate Ground-States for Metals from Converged Coupled Cluster Calculations

T Schäfer - arXiv preprint arXiv:2408.14237, 2024 - arxiv.org
Many-electron correlation methods offer a systematic approach to predicting material
properties with high precision. However, practically attaining accurate ground-state …

Taming the Inverse and Forward Problems in Density Functional Theory

N Woods - 2022 - repository.cam.ac.uk
Theforward problem'of ground-state density functional theory (DFT) constitutes finding the
ground-state density n (x) that minimises a Kohn-Sham total energy functional defined using …