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@ARTICLE{Attig:43454,
      author       = {Attig, N. and Lippert, T. and Neff, H. and Negele, J. and
                      Schilling, K.},
      title        = {{G}iant eigenproblems from lattice gauge theory on {CRAY}
                      {T}3{E} systems},
      journal      = {Computer physics communications},
      volume       = {142},
      issn         = {0010-4655},
      address      = {Amsterdam},
      publisher    = {North Holland Publ. Co.},
      reportid     = {PreJuSER-43454},
      pages        = {196 - 200},
      year         = {2001},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {The determination of physical properties of flavor singlet
                      objects like the eta' meson by computer simulation requires
                      the computation of functionals of the inverse fermionic
                      matrix M-1. So far, only stochastic methods could cope with
                      the enormous size of M. In this paper, we introduce an
                      alternative approach which is based on the Computation of a
                      subset of low-lying eigenmodes of the fermionic matrix. The
                      high quality of this 'truncated eigenmode approximation'
                      (TEA) is demonstrated by comparison with the pion
                      correlator, a flavor octet quantity, which is readily
                      computable through a linear system of equations. We show
                      that TEA can successfully approximate the flavor singlet
                      eta' correlator. We find that the systematic error of the
                      method is tolerable. As the determination of the chosen
                      subset of 300 eigenmodes requires about 3.5 Tflops-hours
                      CPU-time per canonical ensemble and at least 15 GBytes of
                      memory, the power of high-end supercomputers like the CRAY
                      T3E is indispensable. (C) 2001 Elsevier Science B.V. All
                      rights reserved.},
      keywords     = {J (WoSType)},
      cin          = {ZAM},
      ddc          = {004},
      cid          = {I:(DE-Juel1)VDB62},
      pnm          = {Programmiermethoden und Software-Werkzeuge},
      pid          = {G:(DE-Juel1)FUEK106},
      shelfmark    = {Computer Science, Interdisciplinary Applications / Physics,
                      Mathematical},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000173099200038},
      doi          = {10.1016/S0010-4655(01)00329-0},
      url          = {https://juser.fz-juelich.de/record/43454},
}