Efficient computation of low-lying eigenmodes of non-Hermitian Wilson-Dirac type matrices
被引:4
作者:
Neff, H
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机构:
Forschungszentrum Julich, John Von Neumann Inst Comp, D-52425 Julich, GermanyForschungszentrum Julich, John Von Neumann Inst Comp, D-52425 Julich, Germany
Neff, H
[1
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机构:
[1] Forschungszentrum Julich, John Von Neumann Inst Comp, D-52425 Julich, Germany
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.