A coupled cluster framework for electrons and phonons.
A coupled cluster framework for electrons and phonons.
复制标题
电子和声子的耦合簇框架。
DOI:
10.1063/5.0033132
复制
发表时间:
2020
期刊:
影响因子:
--
通讯作者:
G. Chan
中科院分区:
文献类型:
--
作者:
Alec F. White;Yang Gao;A. Minnich;G. Chan
We describe a coupled cluster framework for coupled systems of electrons and harmonic phonons. Neutral and charged excitations are accessed via the equation-of-motion version of the theory. Benchmarks on the Hubbard-Holstein model allow us to assess the strengths and weaknesses of different coupled cluster approximations, which generally perform well for weak to moderate coupling. Finally, we report progress toward an implementation for ab initio calculations on solids and present some preliminary results on finite-size models of diamond with a linear electron-phonon coupling. We also report the implementation of electron-phonon coupling matrix elements from crystalline Gaussian type orbitals within the PySCF program package.
影响因子:
4.2
作者:
Mordovina U
通讯作者:
Mordovina U
DOI:
10.1063/5.0018930
发表时间:
2020
期刊:
The Journal of chemical physics
影响因子:
--
作者:
Sibaev M
通讯作者:
Sibaev M
影响因子:
4.4
作者:
Kuehne, Thomas D.;Iannuzzi, Marcella;Hutter, Jurg
通讯作者:
Hutter, Jurg