Efficient computation of low-lying eigenmodes of non-Hermitian Wilson-Dirac type matrices
arXiv:hep-lat/0110076 · doi:10.1016/S0920-5632(01)01926-0
Abstract
A polynomial transformation for non-Hermitian matrices is presented, which provides access to wedge-shaped spectral windows. For Wilson-Dirac type matrices this procedure not only allows the determination of the physically interesting low-lying eigenmodes but also provides a substantial acceleration of the eigenmode algorithm employed.
Lattice2001(algorithms)
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