Exact exchange-correlation potentials from ground-state electron densities

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود 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

Kohn - Sham potentials and exchange and correlation energy densities from one - and two - electron density matrices for

A definition of key quantities of the Kohn-Sham form of density-functional theory such as the exchangecorrelation potential vxc and the energy density «xc in terms of wave-function quantities ~oneand two-electron density matrices! is given. This allows the construction of vxc and «xc numerically as functions of r from ab initio wave functions. The behavior of the constructed exchange «x and cor...

متن کامل

Insulating ground States of transition-metal monoxides from exact exchange.

The exact exchange of density functional theory is used to calculate the electronic structure of the antiferromagnetic (type II) phases of the transition-metal monoxides MnO, FeO, CoO, and NiO at T=0. In contrast with the local density approximation (LDA) and generalized gradient approximation, the exact exchange (combined with LDA correlation) correctly yields insulating ground states for all ...

متن کامل

Improving the accuracy of ground-state correlation energies within a plane-wave basis set: The electron-hole exchange kernel.

A new formalism was recently proposed to improve random phase approximation (RPA) correlation energies by including approximate exchange effects [B. Mussard et al., J. Chem. Theory Comput. 12, 2191 (2016)]. Within this framework, by keeping only the electron-hole contributions to the exchange kernel, two approximations can be obtained: An adiabatic connection analog of the second order screened...

متن کامل

Comparison between exact and semilocal exchange potentials: An all-electron study for solids

The exact-exchange (EXX) potential, which is obtained by solving the optimized-effective potential (OEP) equation, is compared to various approximate semilocal exchange potentials for a set of selected solids (C, Si, BN, MgO, Cu2O, and NiO). This is done in the framework of the linearized augmented plane-wave method, which allows for a very accurate all-electron solution of electronic structure...

متن کامل

Electron scattering from the ground state of mercury

We give a short review of e-Hg scattering and present some results of our recent closecoupling calculations. We look at the challenges facing theorists in the calculation of elastic scattering and excitation of the 6s6p P1 levels. INTRODUCTION In the field of electron-atom scattering the e-Hg collision systems is one of more interesting and important cases. Mercury is an important constituent o...

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: Nature Communications

سال: 2019

ISSN: 2041-1723

DOI: 10.1038/s41467-019-12467-0