We have implemented and applied the GW method and the static screened Bethe–Salpeter equation (BSE) for calculating linear-response properties for quasirelativistic molecular systems. Our ansatz is based on a two-component (2c) scheme that includes spin–orbit coupling as well as scalar relativistic effects. Efficient, state-of-the-art approaches including the analytic continuation (employing Padé approximants, scaling as with system size ) and contour deformation schemes are presented to obtain the required 2c quasirelativistic GW quasiparticle energies. Screened exchange contributions are computed within the resolution-of-the-identity approximation, and working equations for the 2c GW/BSE method are given. The performance of the 2c GW/BSE method is assessed, and results are compared to other methods and experimental data. A robust iterative scheme for solving the eigenvalue problems occurring in the 2c GW/BSE and hybrid time-dependent density functional theories is presented.
Skip Nav Destination
Article navigation
28 May 2019
Research Article|
May 30 2019
Ionized, electron-attached, and excited states of molecular systems with spin–orbit coupling: Two-component GW and Bethe–Salpeter implementations
Christof Holzer
;
Christof Holzer
1
Institute of Physical Chemistry, Karlsruhe Institute of Technology (KIT), KIT Campus South
, P. O. Box 6980, D-76049 Karlsruhe, Germany
Search for other works by this author on:
Wim Klopper
Wim Klopper
a)
1
Institute of Physical Chemistry, Karlsruhe Institute of Technology (KIT), KIT Campus South
, P. O. Box 6980, D-76049 Karlsruhe, Germany
2
Centre for Advanced Study (CAS) at The Norwegian Academy of Science and Letters
, Drammensveien 78, N-0271 Oslo, Norway
a)Author to whom correspondence should be addressed: klopper@kit.edu
Search for other works by this author on:
a)Author to whom correspondence should be addressed: klopper@kit.edu
J. Chem. Phys. 150, 204116 (2019)
Article history
Received:
February 28 2019
Accepted:
May 06 2019
Citation
Christof Holzer, Wim Klopper; Ionized, electron-attached, and excited states of molecular systems with spin–orbit coupling: Two-component GW and Bethe–Salpeter implementations. J. Chem. Phys. 28 May 2019; 150 (20): 204116. https://doi.org/10.1063/1.5094244
Download citation file:
Sign in
Don't already have an account? Register
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Sign in via your Institution
Sign in via your InstitutionPay-Per-View Access
$40.00