Probing Modified Gravity and Non-Abelian Gauge Fields by Gravitational Waves

通过GW探测暗扇区：我们得到了包含轴子和暗光子效应的随机引力波（GW）谱的解析表达式。我们将这一结果发表在《高能物理学杂志》（JHEP）上。暗光子暗物质：我们已经证明，暗光子可以在暴胀过程中产生，并在以后发挥暗物质的作用。非正式变换和彼得罗夫分类：我们已经证明，虽然标量张量和矢量张量理论中的彼得罗夫型解在保形变换下保持不变，但它可以在非正式变换下发生变化。该研究成果发表在《宇宙学与天体粒子物理学杂志》（JCAP）上。

Probing dark sector via GWs: We have obtained an analytical expression for the stochastic gravitational wave (GW) spectrum which includes the effects of axions and dark photons. We published the result in Journal of High Energy Physics (JHEP).Dark photon dark matter: We have shown that dark photons can be produced during inflation and play the role of dark matter later. We published the result in JHEP.Disformal transformation and Petrov classification: We have shown that while a Petrov type of a solution in scalar-tensor and vector-tensor theories remain unchanged under a conformal transformation, it can change under a disformal transformation. We published the result in Journal of Cosmology and Astroparticle Physics (JCAP).