标题： SU(3)胶动力学中限制弦的相互作用 显示英文标题

标题： Interactions of confining strings in SU(3) gluodynamics

摘要： 我们研究了SU(3)胶子动力学中静态矩形四夸克系统中禁闭弦的相互作用能。利用两态近似法，我们计算了不同几何形状的弦状态的能量本征值及其对应的本征向量。这些相互作用既针对同向平行弦，也针对反向平行弦，并且作为四夸克组分位置的函数进行了研究。我们提出了一个简单的肥皂膜模型，并表明用这个肥皂膜模型可以很好地描述四夸克系统基态对应的弦相互作用能。 显示英文摘要

摘要： We study the interaction energy of the confining strings in the static rectangular tetraquark system in SU(3) gluodynamics. Using a two-state approximation we calculate the energy eigenvalues and corresponding eigenvectors of string states of different geometry. The interactions are studied both for the co-aligned and for the counter-aligned parallel strings as the functions of positions of the tetraquark constituents. We formulate a simple soap-film model and show that with a good accuracy the string interaction energy corresponding to the ground state of the tetraquark system can be described by this soap-film model.