标题： 非度规性与超动量：关于洛伦兹不变性可能的破坏 显示英文标题

标题： Nonmetricity and hypermomentum: on the possible violation of Lorentz invariance

摘要： 我们概述了在规范理论方法中如何解释时空的对称群。 具体而言，我们关注超动量概念，并讨论了超流体，该流体适当推广了广义相对论中具有微结构连续介质情况下的完美（欧拉）流体。 我们证明，洛伦兹不变性的可能破坏最适当地通过度规仿射几何中非零的非度规性来理解。 显示英文摘要

摘要： We outline how the symmetry groups of spacetime are interpreted in a gauge-theoretic approach. Specifically, we focus on the hypermomentum concept and discuss the hyperfluid, that appropriately generalizes the perfect (Euler) fluid of general relativity to the case of continuous media with microstructure. We demonstrate that a possible violation of Lorentz invariance is most adequately understood by means of non-vanishing nonmetricity of a metric-affine geometry of spacetime.