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(Approximate) Low-Mode Averaging with a new Multigrid Eigensolver

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 نشر من قبل Jakob Simeth
 تاريخ النشر 2015
  مجال البحث
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We present a multigrid based eigensolver for computing low-modes of the Hermitian Wilson Dirac operator. For the non-Hermitian case multigrid methods have already replaced conventional Krylov subspace solvers in many lattice QCD computations. Since the $gamma_5$-preserving aggregation based interpolation used in our multigrid method is valid for both, the Hermitian and the non-Hermitian case,

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