Combining linear interpolation with extrapolation methods in range-separated ensemble density functional theory

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Tuned range-separated hybrids in density functional theory.

We review density functional theory (DFT) within the Kohn-Sham (KS) and the generalized KS (GKS) frameworks from a theoretical perspective for both time-independent and time-dependent problems. We focus on the use of range-separated hybrids within a GKS approach as a practical remedy for dealing with the deleterious long-range self-repulsion plaguing many approximate implementations of DFT. Thi...

متن کامل

Stochastic Optimally Tuned Range-Separated Hybrid Density Functional Theory.

We develop a stochastic formulation of the optimally tuned range-separated hybrid density functional theory that enables significant reduction of the computational effort and scaling of the nonlocal exchange operator at the price of introducing a controllable statistical error. Our method is based on stochastic representations of the Coulomb convolution integral and of the generalized Kohn-Sham...

متن کامل

Analytical Energy Gradients in Range-Separated Hybrid Density Functional Theory with Random Phase Approximation.

Analytical forces have been derived in the Lagrangian framework for several random phase approximation (RPA) correlated total energy methods based on the range separated hybrid (RSH) approach, which combines a short-range density functional approximation for the short-range exchange-correlation energy with a Hartree-Fock-type long-range exchange and RPA long-range correlation. The RPA correlati...

متن کامل

Range-separated density-functional theory with random phase approximation applied to noncovalent intermolecular interactions.

Range-separated methods combining a short-range density functional with long-range random phase approximations (RPAs) with or without exchange response kernel are tested on rare-gas dimers and the S22 benchmark set of weakly interacting complexes of Jurecka et al. [Phys. Chem. Chem. Phys. 8, 1985 (2006)]. The methods are also compared to full-range RPA approaches. Both range separation and incl...

متن کامل

Range-separated density-functional theory with the random-phase approximation: Detailed formalism and illustrative applications

Using Green’s-function many-body theory, we present the details of a formally exact adiabatic-connection fluctuation-dissipation density-functional theory based on range separation, which was sketched in Toulouse et al. [Phys. Rev. Lett. 102, 096404 (2009)]. Range-separated density-functional theory approaches combining short-range density-functional approximations with long-range random-phase ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Molecular Physics

سال: 2015

ISSN: 0026-8976,1362-3028

DOI: 10.1080/00268976.2015.1119902