论文标题
Instanton扩展和相变
Instanton Expansions and Phase Transitions
论文作者
论文摘要
任何轴承理论中的中心对象是其周期性的潜力，通常由Instantons产生。本文的目的是了解当我们失去对潜力的intsanton扩展的控制时，理论的身体发生了什么。我们利用杨李的相变理论认为，该理论在经典意义上崩溃了：状态变得光明。但是，这些状态不一定对轴心的所有值都很轻，并且有效描述仍然有效。我们在这些光状态的性质方面找到了有效潜力的替代表达，即使激体扩展破裂，它们仍然有用，从而启动超越大型intanton动作的灯柱的推动力。这些问题中的大多数是由轴突弱的重力猜想引起的，我们在没有参考instanton行动的情况下重新重新制定了这些问题。我们还评论了它限制大型斧头通胀的能力。
A central object in any axionic theory is its periodic potential, which is typically generated by instantons. The goal of this paper is to understand what physically happens to the theory when we lose control of the potential's instanton expansion. We argue, using the Yang-Lee theory of phase transitions, that the theory breaks down in the classic sense: states become light. However, these states are not necessarily light for all values of the axion and there can be large regions where the effective description remains valid. We find alternative expressions for the effective potential in terms of the properties of these light states, which remain useful even when the instanton expansion breaks down, and thus initiate a push beyond the lamppost of large instanton actions. Most of these questions are motivated by the axionic Weak Gravity Conjecture, which we reformulate without reference to instanton actions. We also comment on its ability to constrain large-field axion inflation.
