Chirality correlation within Dirac eigenvectors from domain wall fermions

被引:43
作者
Blum, T [1 ]
Christ, N
Cristian, C
Dawson, C
Liao, X
Liu, G
Mawhinney, R
Wu, L
Zhestkov, Y
机构
[1] Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA
[2] Columbia Univ, Dept Phys, New York, NY 10027 USA
[3] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA
来源
PHYSICAL REVIEW D | 2002年 / 65卷 / 01期
关键词
D O I
10.1103/PhysRevD.65.014504
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
In the dilute instanton gas model of the QCD vacuum, one expects a strong spatial correlation between chirality and the maxima of the Dirac eigenvectors with small eigenvalues. Following Horvath et al. we examine this question using lattice gauge theory within the quenched approximation. We extend the work of those authors by using weaker coupling, beta=6.0, larger lattices, 16(4), and an improved fermion formulation, domain wall fermions. In contrast with this earlier work, we find a striking correlation between the magnitudes of the chirality density, \psidagger(x) gamma(5) psi(x)\, and the normal density, psidagger(x) psi(x), for the low-lying Dirac eigenvectors.
引用
收藏
页数:10
相关论文
共 25 条
[11]   Domain wall fermions with exact chiral symmetry [J].
Edwards, RG ;
Heller, UM .
PHYSICAL REVIEW D, 2001, 63 (09)
[12]   AXIAL SYMMETRIES IN LATTICE QCD WITH KAPLAN FERMIONS [J].
FURMAN, V ;
SHAMIR, Y .
NUCLEAR PHYSICS B, 1995, 439 (1-2) :54-78
[13]  
HERNANDEZ P, HEPLAT0007015
[14]   Evidence against instanton dominance of topological charge fluctuations in QCD -: art. no. 014502 [J].
Horváth, I ;
Isgur, N ;
McCune, J ;
Thacker, HB .
PHYSICAL REVIEW D, 2002, 65 (01) :145021-1450212
[15]  
Iwasaki Y., UTHEP118
[16]   An accelerated conjugate gradient algorithm to compute low-lying eigenvalues - A study for the Dirac operator in SU(2) lattice QCD [J].
Kalkreuter, T ;
Simma, H .
COMPUTER PHYSICS COMMUNICATIONS, 1996, 93 (01) :33-47
[17]  
Khan AA, 2001, PHYS REV D, V63, DOI 10.1103/PhysRevD.63.114504
[18]   TOPOLOGY OF LATTICE GAUGE-FIELDS [J].
LUSCHER, M .
COMMUNICATIONS IN MATHEMATICAL PHYSICS, 1982, 85 (01) :39-48
[19]   The 1 Teraflops QCDSP computer [J].
Mawhinney, RD .
PARALLEL COMPUTING, 1999, 25 (10-11) :1281-1296
[20]   A CONSTRUCTION OF LATTICE CHIRAL GAUGE-THEORIES [J].
NARAYANAN, R ;
NEUBERGER, H .
NUCLEAR PHYSICS B, 1995, 443 (1-2) :305-385