Merons and instantons versus monopoles and calorons: identifying the semiclassical pseudoparticle mechanism responsible for confinement and deconfinement

该项目旨在识别和区分最近开发的基于标准伪粒子溶液（介子、瞬子或哈林顿-谢泼德卡子）的约束情景和具有非平凡完整度的卡子。我们将集中于零温度和非零温度约束以及定义SU(N) Yang-Mills理论和/或全QCD中的场系综。特别的重点将放在介子溶液的rôle上，迄今为止，与其他伪粒子相比，介子溶液受到的关注要少得多。这些场景中的系统模型计算将面临晶格场理论研究，包括各种最近开发的滤波技术，因为存在晶格狄拉克算子和拉普拉斯算子的涂抹和模态展开。

The project aims at an identification of and a possible discrimination between recently developed scenarios for confinement based on standard pseudoparticle solutions (merons, instantons or Harrington-Shepard calorons) on the one hand and calorons with non-trivial holonomy on the other. We shall concentrate on zero-temperature and on nonzero-temperature confining as well as deconfining field ensembles in SU(N) Yang-Mills theory and/or full QCD. Special emphasis will be layed on the rôle of meron solutions, which have so far received much less attention than the other pseudoparticles. Systematic model computations within these scenarios will be confronted with lattice field theory investigations including various recently developed filtering techniques as there are smearing and mode expansions of the lattice Dirac as well as of the Laplacian operator.