标题： 1+1维场论的束缚态 显示英文标题

标题： Bound states of 1+1 dimensional field theories

摘要： 我们讨论了大质量Thirring模型的束缚态。 在这里，对Bethe假设解的周期性边界条件方程进行了数值求解。 发现大质量Thirring模型只有一个束缚态，且束缚态谱作为耦合常数的函数与Fujita和Ogura提出的无限动量框架预测结果一致。 玻色子-玻色子态（2p$-$2h态）仅作为连续谱出现，而不形成任何束缚态。 此外，还估算了真空能的有限尺寸修正。 计算得到的中心荷接近于1。 显示英文摘要

摘要： We discuss the bound states of the massive Thirring model. Here, the periodic boundary condition equations for the Bethe ansatz solutions are numerically solved. It is found that the massive Thirring model has only one bound state and the bound state spectrum as the function of the coupling constant agrees with that of infinite momentum frame prescription by Fujita and Ogura. Boson boson states (2p$-$2h states) appear only as the continuum spectrum without making any bound states. Further, the finite size correction to the vacuum energy is estimated. The evaluated central charge is found to be close to unity.