[{"status":"public","editor":[{"full_name":"Grotendorst, Johannes","last_name":"Grotendorst","first_name":"Johannes"},{"full_name":"Blügel, Stefan","last_name":"Blügel","first_name":"Stefan"},{"full_name":"Marx, Dominik","last_name":"Marx","first_name":"Dominik"}],"type":"book_chapter","file_date_updated":"2022-01-06T06:53:43Z","extern":"1","user_id":"458","series_title":"NIC Series","_id":"18606","citation":{"ama":"Friedrich C, Schindlmayr A. Many-body perturbation theory: The GW approximation. In: Grotendorst J, Blügel S, Marx D, eds. <i>Computational Nanoscience: Do It Yourself!</i>. Vol 31. NIC Series. Jülich: John von Neumann Institute for Computing; 2006:335-355.","ieee":"C. Friedrich and A. Schindlmayr, “Many-body perturbation theory: The GW approximation,” in <i>Computational Nanoscience: Do It Yourself!</i>, vol. 31, J. Grotendorst, S. Blügel, and D. Marx, Eds. Jülich: John von Neumann Institute for Computing, 2006, pp. 335–355.","chicago":"Friedrich, Christoph, and Arno Schindlmayr. “Many-Body Perturbation Theory: The GW Approximation.” In <i>Computational Nanoscience: Do It Yourself!</i>, edited by Johannes Grotendorst, Stefan Blügel, and Dominik Marx, 31:335–55. NIC Series. Jülich: John von Neumann Institute for Computing, 2006.","mla":"Friedrich, Christoph, and Arno Schindlmayr. “Many-Body Perturbation Theory: The GW Approximation.” <i>Computational Nanoscience: Do It Yourself!</i>, edited by Johannes Grotendorst et al., vol. 31, John von Neumann Institute for Computing, 2006, pp. 335–55.","bibtex":"@inbook{Friedrich_Schindlmayr_2006, place={Jülich}, series={NIC Series}, title={Many-body perturbation theory: The GW approximation}, volume={31}, booktitle={Computational Nanoscience: Do It Yourself!}, publisher={John von Neumann Institute for Computing}, author={Friedrich, Christoph and Schindlmayr, Arno}, editor={Grotendorst, Johannes and Blügel, Stefan and Marx, DominikEditors}, year={2006}, pages={335–355}, collection={NIC Series} }","short":"C. Friedrich, A. Schindlmayr, in: J. Grotendorst, S. Blügel, D. Marx (Eds.), Computational Nanoscience: Do It Yourself!, John von Neumann Institute for Computing, Jülich, 2006, pp. 335–355.","apa":"Friedrich, C., &#38; Schindlmayr, A. (2006). Many-body perturbation theory: The GW approximation. In J. Grotendorst, S. Blügel, &#38; D. Marx (Eds.), <i>Computational Nanoscience: Do It Yourself!</i> (Vol. 31, pp. 335–355). Jülich: John von Neumann Institute for Computing."},"page":"335-355","intvolume":"        31","place":"Jülich","publication_status":"published","publication_identifier":{"isbn":["3-00-017350-1"]},"has_accepted_license":"1","main_file_link":[{"url":"http://hdl.handle.net/2128/4778","open_access":"1"}],"conference":{"name":"NIC Winter School","start_date":"2006-02-14","end_date":"2006-02-22","location":"Jülich"},"author":[{"first_name":"Christoph","last_name":"Friedrich","full_name":"Friedrich, Christoph"},{"id":"458","full_name":"Schindlmayr, Arno","last_name":"Schindlmayr","orcid":"0000-0002-4855-071X","first_name":"Arno"}],"volume":31,"date_updated":"2022-01-06T06:53:43Z","oa":"1","file":[{"date_updated":"2022-01-06T06:53:43Z","creator":"schindlm","date_created":"2020-08-28T18:38:38Z","title":"Many-body perturbation theory: The GW approximation","description":"© 2006 John von Neumann Institute for Computing","file_size":317126,"file_id":"18607","file_name":"NIC-GW.pdf","access_level":"request","content_type":"application/pdf","relation":"main_file"}],"abstract":[{"text":"In this lecture we present many-body perturbation theory as a method to determine quasiparticle excitations in solids, especially electronic band structures, accurately from first principles. The main ingredient is the electronic self-energy that, in principle, contains all many-body exchange and correlation effects beyond the Hartree potential. As its exact mathematical expression is unknown, approximations must be used in practical calculations. The approximation is obtained using a systematic algebraic approach on the basis of Green function techniques. It constitutes an expansion of the self-energy up to linear order in the screened Coulomb potential, which describes the interaction between the quasiparticles and includes dynamic screening through the creation of exchange-correlation holes around the bare particles. The implementation of the approximation relies on a perturbative treatment starting from density functional theory. Besides a detailed mathematical discussion we focus on the underlying physical concepts and show some illustrative applications.","lang":"eng"}],"publication":"Computational Nanoscience: Do It Yourself!","language":[{"iso":"eng"}],"ddc":["530"],"year":"2006","title":"Many-body perturbation theory: The GW approximation","date_created":"2020-08-28T18:43:18Z","publisher":"John von Neumann Institute for Computing"}]