标题： 自发的曲率耦合张量化及其超越 显示英文标题

标题： Spontaneous tensorization from curvature coupling and beyond

摘要： 我们推广了最近引入的扩展纯量-张量-高斯-博内（ESTGB）理论及其相关理论，以包括非纯量场（如矢量场）的自发增长。这类似于从Damour和Esposito-Farèse（DEF）提出的自发纯量化理论发展出自发张量化的研究计划。这种新扩展的理论家族在弱场测试中保持了DEF理论的吸引力，同时在强引力情况下也能提供显著信号。此外，它们提供了更丰富的现象学，包括像ESTGB中那样的黑洞自发张量化。这些理论以及我们讨论的其他可能的未来扩展，证明了引力中自发增长的普遍性。我们还注意到，具有导数耦合的理论需要特别关注，因为它们可能导致运动方程中出现潜在问题的高阶导数。 显示英文摘要

摘要： We generalize the recently introduced extended scalar-tensor-Gauss-Bonnet (ESTGB) theories and their close relatives to include spontaneous growth of nonscalar fields such as vectors. This is analogous to the program that developed spontaneous tensorization from the original spontaneous scalarization theory of Damour and Esposito-Far\`ese (DEF). The new larger family of theories conserves the appeal of the DEF theory in terms of conforming to weak-field tests and also providing large signals in strong gravity. Moreover, they provide a much richer phenomenology including spontaneous tensorization of black holes as in ESTGB. These theories, together with other possible future extensions that we discuss, testify to the ubiquity of spontaneous growth in gravity. We also note that theories with derivative coupling require special attention since they can lead to potentially problematic higher derivatives in the equations of motion.