{"date_updated":"2022-11-11T06:58:18Z","intvolume":"        10","issue":"6","file":[{"date_updated":"2020-08-30T16:19:49Z","file_name":"Thomas_J_Pollehn_1998_J._Phys. _Condens._Matter_10_011.pdf","access_level":"closed","content_type":"application/pdf","file_id":"18625","date_created":"2020-08-28T21:59:59Z","creator":"schindlm","file_size":226847,"relation":"main_file","description":"© 1998 IOP Publishing Ltd","title":"Assessment of the GW approximation using Hubbard chains"}],"extern":"1","abstract":[{"text":"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.","lang":"eng"}],"title":"Assessment of the GW approximation using Hubbard chains","author":[{"last_name":"Pollehn","full_name":"Pollehn, Thomas Joachim","first_name":"Thomas Joachim"},{"id":"458","first_name":"Arno","last_name":"Schindlmayr","full_name":"Schindlmayr, Arno","orcid":"0000-0002-4855-071X"},{"last_name":"Godby","full_name":"Godby, Rex William","first_name":"Rex William"}],"publication_identifier":{"eissn":["1361-648X"],"issn":["0953-8984"]},"date_created":"2020-08-28T21:58:46Z","doi":"10.1088/0953-8984/10/6/011","external_id":{"arxiv":["cond-mat/9711120"],"isi":["000072104000011"]},"publication_status":"published","file_date_updated":"2020-08-30T16:19:49Z","volume":10,"has_accepted_license":"1","isi":"1","language":[{"iso":"eng"}],"quality_controlled":"1","page":"1273-1283","publication":"Journal of Physics: Condensed Matter","year":"1998","user_id":"458","article_type":"original","_id":"18624","status":"public","publisher":"IOP Publishing","type":"journal_article","citation":{"apa":"Pollehn, T. J., Schindlmayr, A., &#38; Godby, R. W. (1998). Assessment of the GW approximation using Hubbard chains. <i>Journal of Physics: Condensed Matter</i>, <i>10</i>(6), 1273–1283. <a href=\"https://doi.org/10.1088/0953-8984/10/6/011\">https://doi.org/10.1088/0953-8984/10/6/011</a>","chicago":"Pollehn, Thomas Joachim, Arno Schindlmayr, and Rex William Godby. “Assessment of the GW Approximation Using Hubbard Chains.” <i>Journal of Physics: Condensed Matter</i> 10, no. 6 (1998): 1273–83. <a href=\"https://doi.org/10.1088/0953-8984/10/6/011\">https://doi.org/10.1088/0953-8984/10/6/011</a>.","mla":"Pollehn, Thomas Joachim, et al. “Assessment of the GW Approximation Using Hubbard Chains.” <i>Journal of Physics: Condensed Matter</i>, vol. 10, no. 6, IOP Publishing, 1998, pp. 1273–83, doi:<a href=\"https://doi.org/10.1088/0953-8984/10/6/011\">10.1088/0953-8984/10/6/011</a>.","ama":"Pollehn TJ, Schindlmayr A, Godby RW. Assessment of the GW approximation using Hubbard chains. <i>Journal of Physics: Condensed Matter</i>. 1998;10(6):1273-1283. doi:<a href=\"https://doi.org/10.1088/0953-8984/10/6/011\">10.1088/0953-8984/10/6/011</a>","ieee":"T. J. Pollehn, A. Schindlmayr, and R. W. Godby, “Assessment of the GW approximation using Hubbard chains,” <i>Journal of Physics: Condensed Matter</i>, vol. 10, no. 6, pp. 1273–1283, 1998, doi: <a href=\"https://doi.org/10.1088/0953-8984/10/6/011\">10.1088/0953-8984/10/6/011</a>.","bibtex":"@article{Pollehn_Schindlmayr_Godby_1998, title={Assessment of the GW approximation using Hubbard chains}, volume={10}, DOI={<a href=\"https://doi.org/10.1088/0953-8984/10/6/011\">10.1088/0953-8984/10/6/011</a>}, 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} }","short":"T.J. Pollehn, A. Schindlmayr, R.W. Godby, Journal of Physics: Condensed Matter 10 (1998) 1273–1283."},"ddc":["530"]}