% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Klein:859219,
      author       = {Klein, Nico and Lee, Dean and Meissner, Ulf-G.},
      title        = {{L}attice improvement in lattice effective field theory},
      journal      = {The European physical journal / A},
      volume       = {54},
      number       = {12},
      issn         = {0939-7922},
      address      = {Heidelberg},
      publisher    = {Springer},
      reportid     = {FZJ-2019-00100},
      pages        = {233},
      year         = {2018},
      abstract     = {Lattice calculations using the framework of effective field
                      theory have been applied to a wide range of few-body and
                      many-body systems. One of the challenges of these
                      calculations is to remove systematic errors arising from the
                      nonzero lattice spacing. Fortunately, the lattice
                      improvement program pioneered by Symanzik provides a
                      formalism for doing this. While lattice improvement has
                      already been utilized in lattice effective field theory
                      calculations, the effectiveness of the improvement program
                      has not been systematically benchmarked. In this work we use
                      lattice improvement to remove lattice errors for a
                      one-dimensional system of bosons with zero-range
                      interactions. We construct the improved lattice action up to
                      next-to-next-to-leading order and verify that the remaining
                      errors scale as the fourth power of the lattice spacing for
                      observables involving as many as five particles. Our results
                      provide a guide for increasing the accuracy of future
                      calculations in lattice effective field theory with improved
                      lattice actions.},
      cin          = {IAS-4 / IKP-3 / JARA-HPC},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IAS-4-20090406 / I:(DE-Juel1)IKP-3-20111104 /
                      $I:(DE-82)080012_20140620$},
      pnm          = {511 - Computational Science and Mathematical Methods
                      (POF3-511) / DFG project 196253076 - TRR 110: Symmetrien und
                      Strukturbildung in der Quantenchromodynamik (196253076) /
                      Nuclear Lattice Simulations $(jara0015_20130501)$},
      pid          = {G:(DE-HGF)POF3-511 / G:(GEPRIS)196253076 /
                      $G:(DE-Juel1)jara0015_20130501$},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000455187000001},
      doi          = {10.1140/epja/i2018-12676-1},
      url          = {https://juser.fz-juelich.de/record/859219},
}