论文标题
欧几里得真空，实时生产和轻型前波函数中的intstanton效应
Instanton effects in Euclidean vacuum, real time production and in the light front wave functions
论文作者
论文摘要
1970年代发现了非亚洲量规场的非平凡拓扑结构。 Instanton Solutions描述了通过拓扑壁垒进行真空隧道的描述，具有fermionic零模式，其起源为$^\ prime $ t Hooff hooft有效的Lagrangian。在1980年代，Instanton合奏被用来解释手性对称性的破坏。在1990年代，进行了大量数值模拟，以推导欧几里得相关函数。标量diquarks在核子中的特殊作用以及在致密夸克物质中的颜色超导性。 在这些讲座中，我们讨论了与衡量拓扑有关的物理学的进一步发展。我们表明，高能量碰撞中的Instanton-Antiinstanton“流线”配置描述了“ Sphaleron转变”，这导致产生具有非平凡拓扑/手性电荷的HADRONES簇。 （尚未观察到它们，但是在LHC和RHIC上进行专门实验的讨论正在进行中。） 另一个新的方向是在其余框架和光线框架中的辐射光谱中的Instanton效应。我们将讨论它们在中央和自旋依赖性潜力，形式因子和古夸克核“海”中的作用。最后，我们总结了在有限温度，QCD及其某些“变形”版本中在有限温度下的半经典理论和手性相变的进步。
Nontrivial topological structures of non-Abelian gauge fields were discovered in the 1970's. Instanton solutions, describing vacuum tunneling through topological barriers, have fermionic zero modes which are at the origin of $^\prime$t Hooft effective Lagrangian. In the 1980's instanton ensembles have been used to explain chiral symmetry breaking. In the 1990's a large set of numerical simulations were performed deriving Euclidean correlation functions. The special role of scalar diquarks in nucleons, and color superconductivity in dense quark matter have been elucidated. In these lectures, we discuss further developments of physics related to gauge topology. We show that the instanton-antiinstanton "streamline" configurations describe "sphaleron transitions" in high energy collisions, which result in production of hadronic clusters with nontrivial topological/chiral charges. (They are not yet observed, but discussions of dedicated experiments at LHC and RHIC are ongoing.) Another new direction is instanton effects in hadronic spectroscopy, both in the rest frame and on the light front. We will discuss their role in central and spin-dependent potentials, formfactors and antiquark nuclear "sea". Finally, we summarize the advances in the semiclassical theory of deconfinement, and chiral phase transitions at finite temperature, in QCD and in some of its "deformed" versions.
