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

该项目的目的是确定和区分最近开发的基于标准伪粒子解决方案(梅隆、瞬子或哈林顿-谢泼德卡隆)的禁闭方案和具有非平凡完整理论的卡隆方案。我们将集中在SU(N)Yang-Mills理论和/或全QCD中的零温度和非零温度禁闭以及去禁闭场系综上。将特别强调梅隆解决方案的问题，到目前为止，与其他伪品相比，它受到的关注要少得多。在这些场景中的系统模型计算将面临格子场理论研究，包括各种最近发展的过滤技术，因为存在格子狄拉克和拉普拉斯算符的拖尾和模式扩展。

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.