Scaling tests with dynamical overlap and rooted staggered fermions -: art. no. 054501

被引:68
作者
Dürr, S
Hoelbling, C
机构
[1] DESY, D-15738 Zeuthen, Germany
[2] Univ Bern, Inst Theoret Phys, CH-3012 Bern, Switzerland
[3] CNRS Marseille Luminy, Ctr Phys Theor, UMR 6207, F-13288 Marseille, France
[4] Berg Univ Wuppertal, D-42119 Wuppertal, Germany
来源
PHYSICAL REVIEW D | 2005年 / 71卷 / 05期
关键词
D O I
10.1103/PhysRevD.71.054501
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present a scaling analysis in the 1-flavor Schwinger model with the full overlap and the rooted staggered determinant. In the latter case the chiral and continuum limit of the scalar condensate do not commute, while for overlap fermions they do. For the topological susceptibility a universal continuum limit is suggested, as is for the partition function and the Leutwyler-Smilga sum rule. In the heavy-quark force no difference is visible even at finite coupling. Finally, a direct comparison between the complete overlap and the rooted staggered determinant yields evidence that their ratio is constant up to O(alpha(2)) effects.
引用
收藏
页码:1 / 17
页数:17
相关论文
共 68 条
[1]   Normalization of the chiral condensate in the massive Schwinger model [J].
Adam, C .
PHYSICS LETTERS B, 1998, 440 (1-2) :117-122
[2]   Simplified test of universality in lattice QCD [J].
Adams, DH .
PHYSICAL REVIEW LETTERS, 2004, 92 (16) :162002-1
[3]  
ADAMS DH, HEPLAT0409013
[4]  
ADAMS DH, HEPLAT0411030
[5]   Light pseudoscalar decay constants, quark masses, and low energy constants from three-flavor lattice QCD [J].
Aubin, C ;
Bernard, C ;
DeTar, C ;
Osborn, J ;
Gottlieb, S ;
Gregory, EB ;
Toussaint, D ;
Heller, UM ;
Hetrick, JE ;
Sugar, R .
PHYSICAL REVIEW D, 2004, 70 (11) :114501-1
[6]   Pseudoscalar decay constants in staggered chiral perturbation theory [J].
Aubin, C ;
Bernard, C .
PHYSICAL REVIEW D, 2003, 68 (07)
[7]   Pion and kaon masses in staggered chiral perturbation theory [J].
Aubin, C ;
Bernard, C .
PHYSICAL REVIEW D, 2003, 68 (03)
[8]   MICROCANONICAL FERMIONIC AVERAGE METHOD IN THE SCHWINGER MODEL - A REALISTIC COMPUTATION OF THE CHIRAL CONDENSATE [J].
AZCOITI, V ;
DICARLO, G ;
GALANTE, A ;
GRILLO, AF ;
LALIENA, V .
PHYSICAL REVIEW D, 1994, 50 (11) :6994-6997
[9]  
BERNARD C, HEPLAT0412030
[10]   Improving flavor symmetry in the Kogut-Susskind hadron spectrum [J].
Blum, T ;
DeTar, C ;
Gottlieb, S ;
Rummukainen, K ;
Heller, UM ;
Hetrick, JE ;
Toussaint, D ;
Sugar, RL ;
Wingate, M .
PHYSICAL REVIEW D, 1997, 55 (03) :R1133-R1137