Proceedings of the XXV International Symposium on Lattice Field Theory — PoS(LATTICE 2007) 2008
DOI: 10.22323/1.042.0107
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The eigenvalue spectrum for dynamical chirally improved fermions

Abstract: We study the eigenvalues of Dirac operators in QCD with two mass degenerate dynamical fermions. The gauge configurations have been obtained with HMC and the so-called Chirally Improved fermionic action. We compare eigenvalues obtained for the overlap Dirac operator on these configurations with those for the Chirally Improved (CI) operator (studied earlier). Results of Random Matrix Theory allow us to determine the chiral condensate.

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Cited by 4 publications
(3 citation statements)
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“…The recent series of work by JLQCD collaboration [17,18,19] has opened a new possibility of simulating unquenched QCD in the ǫ-regime (see also [20,21,22,23,24,25,26,27] for other exploratory studies). We performed two-flavor dynamical overlap fermion simulations with the quark mass near the chiral limit, on a 16 3 ×32 lattice at a lattice spacing a ∼ 0.11 fm (determined with r 0 ∼ 0.49 fm [32] as an input).…”
Section: Introductionmentioning
confidence: 99%
“…The recent series of work by JLQCD collaboration [17,18,19] has opened a new possibility of simulating unquenched QCD in the ǫ-regime (see also [20,21,22,23,24,25,26,27] for other exploratory studies). We performed two-flavor dynamical overlap fermion simulations with the quark mass near the chiral limit, on a 16 3 ×32 lattice at a lattice spacing a ∼ 0.11 fm (determined with r 0 ∼ 0.49 fm [32] as an input).…”
Section: Introductionmentioning
confidence: 99%
“…For this purpose, we utilize the implicitly restarted Arnoldi factorization [88] , which is frequently applied in lattice QCD studies, e.g. [89] . An application of this algorithm to bound state calculations is demonstrated in Sections 5 and 6 , where we use it to solve the homogeneous BSE and compare the efficiency of both methods.…”
Section: Solution Methodsmentioning
confidence: 99%
“…For this purpose, we use the implicitly restarted Arnoldi factorization [86], which is frequently applied in lattice QCD studies, e.g. [87]. An application of this algorithm to bound state calculations is demonstrated in Sec.…”
Section: Homogeneous Equations: Eigenvalue Algorithmsmentioning
confidence: 99%