论文标题
孤独夸克的全息限制
Holographic Confinement of the Solitary Quark
论文作者
论文摘要
在限制规格理论的真空中移动的单个夸克被阻力阻止。全息描述将整体几何形状的限制量表与真空中的阻力力的一系列物理值联系起来。作用在孤立的夸克上的真空阻力直接表现出夸克限制，因为它可以防止夸克在真空中自由行走。但是，缺乏阻力力作为夸克速度的函数的分析表达式。在目前的工作中，我们建议真空阻力由相应的热阻力的正则零温度极限给出。在这种方法中，我们在两个不同的全息模型中获得了所需的分析表达：二次DILATON和D-INSTANTON。在这两种情况下，我们都发现属于其物理值范围的良好表现。
Single quarks moving in the vacuum of confining gauge theories are stopped by a drag force. The holographic description relates the confining scale in the bulk geometry with a range of physical values for the drag force in the vacuum. The vacuum drag force acting on the isolated quark directly manifests quark confinement since it prevents the quark from walking freely in the vacuum. However, analytical expressions for the drag force as a function of the quark velocity were lacking. In the present work, we propose that the vacuum drag force is given by the regularized zero-temperature limit of the corresponding thermal drag force. Within this approach, we obtain the desired analytic expressions in two different holographic models: the quadratic dilaton and the D-instanton. In both cases, we find well-behaved functions belonging to their physical range of values.
