标题： 精确相关子在主 chiral 模型的't Hooft 极限中的关联项 显示英文标题

标题： Exact Correlators in the 't Hooft Limit of the Principal Chiral Model

摘要： 当 N 趋于无穷大时，(N × N)-矩阵值场论的性质比等向量值场论的性质更难获得。 这是因为我们对平面图之和的了解少于气泡/线性图之和的了解。 将 1/N 展开与形式因子的公理相结合，可以为 1+1 维中 SU(N) 值场的可积场论找到精确的形式因子。 这些形式因子可用于求两个场算符乘积的真空期望值。 我们简要提及这些结果如何应用于 2+1 维规范理论。 显示英文摘要

摘要： The properties of (N X N)-matrix-valued-field theories, in the limit N goes to infinity, are harder to obtain than those for isovector-valued field theories. This is because we know less about the sum of planar diagrams than the sum of bubble/linear diagrams. Combining the 1/N-expansion with the axioms for form factors, exact form factors can be found for the integrable field theory of an SU(N)-valued field in 1+1 dimensions. These form factors can be used to find the vacuum expectation value of the product of two field operators. We briefly mention how the results can be applied to 2+1 dimensional gauge theories.