标题： 非微扰BRST不变性及其可能的用途 显示英文标题

标题： Non-perturbative BRST invariance and what it might be good for

摘要： 我们构建了一个局部的、规范固定的格点杨-米尔斯理论，该理论具有精确的BRST不变性，并且其微扰展开与标准杨-米尔斯理论相同。 鬼粒子部分及其一些BRST变换规则被修改，以绕过Neuberger定理。 在作用量中引入了一个特殊项来正则化Gribov地平线，并讨论了去除正则化器的极限情况。 最后，我们对这个理论可能的物理意义进行了一些评论。 我们推测，除了预期的禁闭相之外，可能还存在新的强相互作用相。 显示英文摘要

摘要： We construct a local, gauge-fixed, lattice Yang-Mills theory with an exact BRST invariance, and with the same perturbative expansion as the standard Yang-Mills theory. The ghost sector, and some of its BRST transformation rules, are modified to get around Neuberger's theorem. A special term is introduced in the action to regularize the Gribov horizons, and the limit where the regulator is removed is discussed. We conclude with a few comments on what might be the physical significance of this theory. We speculate that there may exist new strong-interaction phases apart from the anticipated confinement phase.