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gr-qc2023★ 1 cited
Gauss-Bonnet modification to Hawking evaporation of AdS black holes in massive gravity
Hao Xu, Yun Du
The Stefan-Boltzmann law can estimate particle emission power and lifetime of a black hole. However, in modified gravity theories, new parameters in the action can cause qualitativ…
hep-th2023
Triple crossing positivity bounds, mass dependence and cosmological scalars: Horndeski theory and DHOST
Hao Xu, Shuang-Yong Zhou
Scalars are widely used in cosmology to model novel phenomena such as the late-time cosmic acceleration. These are effective field theories with highly nonlinear interactions, incl…