标题： 非超对称膜和离散拓扑项 显示英文标题

标题： Non-supersymmetric branes and discrete topological terms

摘要： 在最近的工作中，Tachikawa 和 Zhang 证明了在十维中没有快子的唯一非超对称异质弦理论中存在一个离散的拓扑项。 该理论具有 NS5-膜，其手征自由度由于缺乏对偶性或超对称性而尚未被很好地理解。 在本文中，我们测试通过反常流入获得的假设谱的一致性，研究世界体积理论与时空中的离散拓扑项之间的关系。 此外，我们使用相同的方法对低维引力理论进行了自下而上的研究。 显示英文摘要

摘要： In a recent work, Tachikawa and Zhang proved the existence of a discrete topological term in the unique non-supersymmetric heterotic string with no tachyons in ten dimensions. This theory features NS5-branes, whose chiral degrees of freedom are not well-understood due to the absence of dualities or supersymmetry. In this paper, we test the consistency of a tentative spectrum obtained by anomaly inflow, studying the relation between the worldvolume theory and the discrete topological term in spacetime. Furthermore, we conduct a bottom-up investigation of lower-dimensional gravitational theories with the same methods.