Assessment of the GW approximation using Hubbard chains

T.J. Pollehn, A. Schindlmayr, R.W. Godby, Journal of Physics: Condensed Matter 10 (1998) 1273–1283.

Download
Restricted Assessment of the GW approximation using Hubbard chains 226.85 KB
Journal Article | Published | English
Author
; ;
Abstract
We investigate the performance of the GW approximation by comparison to exact results for small model systems. The role of the chemical potentials in Dyson's equation as well as the consequences of numerical resonance broadening are examined, and we show how a proper treatment can improve computational implementations of many-body perturbation theory in general. Exchange-only and GW calculations are performed over a wide range of fractional band fillings and correlation strengths. We thus identify the physical situations where these schemes are applicable.
Publishing Year
Journal Title
Journal of Physics: Condensed Matter
Volume
10
Issue
6
Page
1273-1283
ISSN
eISSN
LibreCat-ID

Cite this

Pollehn TJ, Schindlmayr A, Godby RW. Assessment of the GW approximation using Hubbard chains. Journal of Physics: Condensed Matter. 1998;10(6):1273-1283. doi:10.1088/0953-8984/10/6/011
Pollehn, T. J., Schindlmayr, A., & Godby, R. W. (1998). Assessment of the GW approximation using Hubbard chains. Journal of Physics: Condensed Matter, 10(6), 1273–1283. https://doi.org/10.1088/0953-8984/10/6/011
@article{Pollehn_Schindlmayr_Godby_1998, title={Assessment of the GW approximation using Hubbard chains}, volume={10}, DOI={10.1088/0953-8984/10/6/011}, number={6}, journal={Journal of Physics: Condensed Matter}, publisher={IOP Publishing}, author={Pollehn, Thomas Joachim and Schindlmayr, Arno and Godby, Rex William}, year={1998}, pages={1273–1283} }
Pollehn, Thomas Joachim, Arno Schindlmayr, and Rex William Godby. “Assessment of the GW Approximation Using Hubbard Chains.” Journal of Physics: Condensed Matter 10, no. 6 (1998): 1273–83. https://doi.org/10.1088/0953-8984/10/6/011.
T. J. Pollehn, A. Schindlmayr, and R. W. Godby, “Assessment of the GW approximation using Hubbard chains,” Journal of Physics: Condensed Matter, vol. 10, no. 6, pp. 1273–1283, 1998.
Pollehn, Thomas Joachim, et al. “Assessment of the GW Approximation Using Hubbard Chains.” Journal of Physics: Condensed Matter, vol. 10, no. 6, IOP Publishing, 1998, pp. 1273–83, doi:10.1088/0953-8984/10/6/011.
Main File(s)
File Name
Thomas_J_Pollehn_1998_J._Phys. _Condens._Matter_10_011.pdf 226.85 KB
File Title
Assessment of the GW approximation using Hubbard chains
Description
© 1998 IOP Publishing Ltd
Access Level
Restricted Closed Access
Last Uploaded
2020-08-30T16:19:49Z


Export

Marked Publications

Open Data LibreCat

Web of Science

View record in Web of Science®

Search this title in

Google Scholar