论文标题
对称恢复，隧道和无效的能量条件
Symmetry restoration, Tunnelling and the Null Energy Condition
论文作者
论文摘要
有限体积允许在量子场理论中进行简并真空之间进行隧穿，并导致出色的能量特征，这是由于分区函数中不同鞍点的竞争而引起的。考虑到静态和（欧几里得）时间依赖的鞍点，我们描述了在平衡处的有限温度竞争。均质顺序参数的有效理论在低温下产生了非扩展的真空能，这意味着动态违反了无效的能量条件。
A finite volume allows tunnelling between degenerate vacua in Quantum Field Theory, and leads to remarkable energetic features, arising from the competition of different saddle points in the partition function. We describe this competition for finite temperature at equilibrium, taking into account both static and (Euclidean) time-dependent saddle points. The effective theory for the homogeneous order parameter yields a non-extensive vacuum energy at low temperatures, implying a dynamical violation of the Null Energy Condition.
