426 citations · 670 across the 18 of their papers we have counts for
9 papers · 1 filter
Geodesic Focusing Conditions in Gravity
Chao-Qiang Geng, Chunhui Liu, Ling-Wei Luo +1
We study the geodesic deviation equation in symmetric teleparallel geometry (STG), where the relative acceleration is defined with respect to the STG connection. We analyze the mod…
Regularization of Gauss-Bonnet Gravity in Riemann-Cartan Geometry
Jianhui Qiu, Ling-Wei Luo, Chunhui Liu +1
We extend the conformal dimensional-derivative regularization of four-dimensional Gauss- Bonnet gravity to Riemann-Cartan geometry, obtaining a regularized action whose torsionless…
Inverse-Chirp Imprint of Gravitational Wave Signals in Scalar Tensor Theory
Chao-Qiang Geng, Hao-Jui Kuan, Ling-Wei Luo
The scalar tensor theory contains a coupling function connecting the quantities in the Jordan and Einstein frames, which is constrained to guarantee a transformation rule between f…
Viable Constraint on Scalar Field in Scalar-Tensor Theory
Chao-Qiang Geng, Hao-Jui Kuan, Ling-Wei Luo
The scalar-tensor theory can be formulated in both Jordan and Einstein frames, which are conformally related together with a redefinition of the scalar field. As the solution to th…
Thermodynamics of Gravity with Disformal Transformation
Chao-Qiang Geng, Wei-Cheng Hsu, Jhih-Rong Lu +1
We study thermodynamics in gravity with the disformal transformation. The transformation applied to the matter Lagrangian has the form of $\g_{\m\n} = A(ϕ,X)g_{\m\n} + B(ϕ,X…
The Buchdahl Stability Bound in Eddington-inspired Born-Infeld Gravity
Wei-Xiang Feng, Chao-Qiang Geng, Ling-Wei Luo
We give the Buchdahl stability bound in Eddington-inspired Born-Infeld (EiBI) gravity. We show that this bound depends on an energy condition controlled by the model parameter .…