Hauptseite > Publikationsdatenbank > Giant eigenproblems from lattice gauge theory on CRAY T3E systems > print

001     43454
005     20200423204011.0
024 7 _ |2 DOI
|a 10.1016/S0010-4655(01)00329-0
024 7 _ |2 WOS
|a WOS:000173099200038
024 7 _ |2 Handle
|a 2128/11897
037 _ _ |a PreJuSER-43454
041 _ _ |a eng
082 _ _ |a 004
084 _ _ |2 WoS
|a Computer Science, Interdisciplinary Applications
084 _ _ |2 WoS
|a Physics, Mathematical
100 1 _ |0 P:(DE-Juel1)132045
|a Attig, N.
|b 0
|u FZJ
245 _ _ |a Giant eigenproblems from lattice gauge theory on CRAY T3E systems
260 _ _ |a Amsterdam
|b North Holland Publ. Co.
|c 2001
300 _ _ |a 196 - 200
336 7 _ |0 PUB:(DE-HGF)16
|2 PUB:(DE-HGF)
|a Journal Article
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336 7 _ |0 0
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|a Journal Article
336 7 _ |2 BibTeX
|a ARTICLE
336 7 _ |2 ORCID
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336 7 _ |2 DRIVER
|a article
440 _ 0 |0 1439
|a Computer Physics Communications
|v 142
|x 0010-4655
500 _ _ |a Record converted from VDB: 12.11.2012
520 _ _ |a 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.
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|a J
653 2 0 |2 Author
|a QCD
653 2 0 |2 Author
|a meson mass calculations
700 1 _ |0 P:(DE-Juel1)132179
|a Lippert, T.
|b 1
|u fzj
700 1 _ |0 P:(DE-HGF)0
|a Neff, H.
|b 2
700 1 _ |0 P:(DE-HGF)0
|a Negele, J.
|b 3
700 1 _ |0 P:(DE-HGF)0
|a Schilling, K.
|b 4
773 _ _ |0 PERI:(DE-600)1466511-6
|a 10.1016/S0010-4655(01)00329-0
|g Vol. 142, p. 196 - 200
|p 196 - 200
|q 142<196 - 200
|t Computer physics communications
|v 142
|x 0010-4655
|y 2001
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914 1 _ |y 2001
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915 _ _ |0 StatID:(DE-HGF)0010
|a JCR/ISI refereed
920 1 _ |0 I:(DE-Juel1)VDB62
|d 31.12.2007
|g ZAM
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|l Zentralinstitut für Angewandte Mathematik
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