---
res:
  bibo_abstract:
  - 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.@eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Andrzej
      foaf_name: Tomski, Andrzej
      foaf_surname: Tomski
  - foaf_Person:
      foaf_givenName: Jan
      foaf_name: Kaczmarczyk, Jan
      foaf_surname: Kaczmarczyk
      foaf_workInfoHomepage: http://www.librecat.org/personId=46C405DE-F248-11E8-B48F-1D18A9856A87
    orcid: 0000-0002-1629-3675
  bibo_doi: 10.1088/0953-8984/28/17/175701
  bibo_issue: '17'
  bibo_volume: 28
  dct_date: 2016^xs_gYear
  dct_identifier:
  - UT:000374393100011
  dct_language: eng
  dct_publisher: IOP Publishing@
  dct_title: 'Gutzwiller wave function for finite systems: Superconductivity in the
    Hubbard model@'
...