Linearized self-consistent quasiparticle GW method: Application to semiconductors and simple metals
- Rutgers Univ., Piscataway, NJ (United States). Dept. of Physics and Astronomy
- Rutgers Univ., Piscataway, NJ (United States). Dept. of Physics and Astronomy; Brookhaven National Lab. (BNL), Upton, NY (United States)
We present a code implementing the linearized self-consistent quasiparticle GW method (QSGW) in the LAPW basis. Our approach is based on the linearization of the self-energy around zero frequency which differs it from the existing implementations of the QSGW method. The linearization allows us to use Matsubara frequencies instead of working on the real axis. This results in efficiency gains by switching to the imaginary time representation in the same way as in the space time method. The all electron LAPW basis set eliminates the need for pseudopotentials. We discuss the advantages of our approach, such as its N3 scaling with the system size N, as well as its shortcomings. We apply our approach to study the electronic properties of selected semiconductors, insulators, and simple metals and show that our code produces the results very close to the previously published QSGW data. Our implementation is a good platform for further many body diagrammatic resummations such as the vertex-corrected GW approach and the GW+DMFT method.
- Research Organization:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- SC0012704
- OSTI ID:
- 1412665
- Alternate ID(s):
- OSTI ID: 1550308
- Report Number(s):
- BNL-114427-2017-JA; R&D Project: PM051; KC02013010; TRN: US1800324
- Journal Information:
- Computer Physics Communications, Vol. 219, Issue C; ISSN 0010-4655
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Ground state properties of 3d metals from self-consistent GW approach | text | January 2017 |
Ground state properties of 3d metals from self-consistent GW approach
|
journal | October 2017 |
Correlated materials design: prospects and challenges
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journal | December 2018 |
Correlated materials design: prospects and challenges | text | January 2018 |
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