{"issue":"17","citation":{"short":"A. Tomski, J. Kaczmarczyk, Journal of Physics: Condensed Matter 28 (2016).","ama":"Tomski A, Kaczmarczyk J. Gutzwiller wave function for finite systems: Superconductivity in the Hubbard model. <i>Journal of Physics: Condensed Matter</i>. 2016;28(17). doi:<a href=\"https://doi.org/10.1088/0953-8984/28/17/175701\">10.1088/0953-8984/28/17/175701</a>","ista":"Tomski A, Kaczmarczyk J. 2016. Gutzwiller wave function for finite systems: Superconductivity in the Hubbard model. Journal of Physics: Condensed Matter. 28(17), 175701.","chicago":"Tomski, Andrzej, and Jan Kaczmarczyk. “Gutzwiller Wave Function for Finite Systems: Superconductivity in the Hubbard Model.” <i>Journal of Physics: Condensed Matter</i>. IOP Publishing Ltd., 2016. <a href=\"https://doi.org/10.1088/0953-8984/28/17/175701\">https://doi.org/10.1088/0953-8984/28/17/175701</a>.","apa":"Tomski, A., &#38; Kaczmarczyk, J. (2016). Gutzwiller wave function for finite systems: Superconductivity in the Hubbard model. <i>Journal of Physics: Condensed Matter</i>. IOP Publishing Ltd. <a href=\"https://doi.org/10.1088/0953-8984/28/17/175701\">https://doi.org/10.1088/0953-8984/28/17/175701</a>","ieee":"A. Tomski and J. Kaczmarczyk, “Gutzwiller wave function for finite systems: Superconductivity in the Hubbard model,” <i>Journal of Physics: Condensed Matter</i>, vol. 28, no. 17. IOP Publishing Ltd., 2016.","mla":"Tomski, Andrzej, and Jan Kaczmarczyk. “Gutzwiller Wave Function for Finite Systems: Superconductivity in the Hubbard Model.” <i>Journal of Physics: Condensed Matter</i>, vol. 28, no. 17, 175701, IOP Publishing Ltd., 2016, doi:<a href=\"https://doi.org/10.1088/0953-8984/28/17/175701\">10.1088/0953-8984/28/17/175701</a>."},"date_published":"2016-03-29T00:00:00Z","publication_status":"published","ec_funded":1,"abstract":[{"lang":"eng","text":"We study the superconducting phase of the Hubbard model using the Gutzwiller variational wave function (GWF) and the recently proposed diagrammatic expansion technique (DE-GWF). The DE-GWF method works on the level of the full GWF and in the thermodynamic limit. Here, we consider a finite-size system to study the accuracy of the results as a function of the system size (which is practically unrestricted). We show that the finite-size scaling used, e.g. in the variational Monte Carlo method can lead to significant, uncontrolled errors. The presented research is the first step towards applying the DE-GWF method in studies of inhomogeneous situations, including systems with impurities, defects, inhomogeneous phases, or disorder."}],"article_number":"175701","_id":"1419","department":[{"_id":"MiLe"}],"language":[{"iso":"eng"}],"author":[{"first_name":"Andrzej","last_name":"Tomski","full_name":"Tomski, Andrzej"},{"full_name":"Kaczmarczyk, Jan","id":"46C405DE-F248-11E8-B48F-1D18A9856A87","last_name":"Kaczmarczyk","first_name":"Jan","orcid":"0000-0002-1629-3675"}],"day":"29","publication":"Journal of Physics: Condensed Matter","doi":"10.1088/0953-8984/28/17/175701","type":"journal_article","date_updated":"2021-01-12T06:50:36Z","month":"03","status":"public","title":"Gutzwiller wave function for finite systems: Superconductivity in the Hubbard model","quality_controlled":"1","project":[{"call_identifier":"FP7","grant_number":"291734","_id":"25681D80-B435-11E9-9278-68D0E5697425","name":"International IST Postdoc Fellowship Programme"}],"volume":28,"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_created":"2018-12-11T11:51:55Z","publist_id":"5788","intvolume":"        28","oa_version":"None","scopus_import":1,"year":"2016","publisher":"IOP Publishing Ltd."}