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Inherently global nature of topological charge fluctuations in QCD
Horvath, I; Alexandru, A; Zhang, JB; Chen, Y; Dong, SJ; Draper, T; Lee, FX; Liu, KF; Mathur, N; Tamhankar, S; Thacker, HB; Chen Y(陈莹)
2005
发表期刊PHYSICS LETTERS B
卷号612期号:1-2页码:#REF!
通讯作者Horvath, I (reprint author), Univ Kentucky, Lexington, KY 40506 USA.
文章类型Article
摘要We have recently presented evidence that in configurations dominating the regularized pure-glue QCD path integral, the topological charge density constructed from the overlap Dirac operator organizes into an ordered space-time structure. It was pointed out that, among other properties, this structure exhibits two important features: it is low-dimensional and geometrically global, i.e., consisting of connected sign-coherent regions with local dimensions 1 <= d < 4, and spreading over arbitrarily large space-time distances. Here we show that the space-time structure responsible for the origin of topological susceptibility indeed exhibits global behavior. In particular, we show numerically that topological fluctuations are not saturated by localized concentrations of most intense topological charge density. To the contrary, the susceptibility saturates only after the space-time regions with most intense fields are included, such that geometrically global structure is already formed. We demonstrate this result both at the fundamental level (full topological density) and at low energy (effective density). The drastic mismatch between the point of fluctuation saturation (approximate to 50% of space-time at low energy) and that of global structure formation (< 4% of space-time at low energy) indicates that the ordered space-time structure in topological charge is inherently global and that topological charge fluctuations in QCD cannot be understood in terms of individual localized pieces. Description in terms of global brane-like objects should be sought instead. (c) 2005 Elsevier B.V. All rights reserved.
学科领域Physics
DOI10.1016/j.physletb.2005.03.004
收录类别SCI
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000228402000004
引用统计
被引频次:35[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/225549
专题理论物理室
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GB/T 7714
Horvath, I,Alexandru, A,Zhang, JB,et al. Inherently global nature of topological charge fluctuations in QCD[J]. PHYSICS LETTERS B,2005,612(1-2):#REF!.
APA Horvath, I.,Alexandru, A.,Zhang, JB.,Chen, Y.,Dong, SJ.,...&陈莹.(2005).Inherently global nature of topological charge fluctuations in QCD.PHYSICS LETTERS B,612(1-2),#REF!.
MLA Horvath, I,et al."Inherently global nature of topological charge fluctuations in QCD".PHYSICS LETTERS B 612.1-2(2005):#REF!.
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