32 citations · 135 across the 11 of their papers we have counts for
11 papers
Scalar-induced gravitational waves from inflation with symmetry breaking
Chong-Bin Chen, Jia-Xi Feng, Fu-Wen Shu +1
We investigate scalar-induced gravitational waves (SIGWs) in an inflationary model with symmetry breaking, in which charged scalar fields are coupled to an isotropic triplet of Abe…
Circularly polarized gravitational waves from parity-violating scalar-tensor theory
Jia-Xi Feng, Jia-Yuan Fang, Xian Gao
We study both primordial gravitational waves (GWs) and scalar-induced gravitational waves (SIGWs) in a class of the parity-violating scalar-tensor (PVST) theory, of which the Lagra…
Scalar induced gravitational waves in chiral scalar-tensor theory of gravity
Jia-Xi Feng, Fengge Zhang, Xian Gao
We study the scalar induced gravitational waves (SIGWs) from a chiral scalar-tensor theory of gravity. The parity-violating (PV) Lagrangian contains the Chern-Simons (CS) term and…
Scalar induced gravitational waves in metric teleparallel gravity with the Nieh-Yan term
Fengge Zhang, Jia-Xi Feng, Xian Gao
We investigate the scalar induced gravitational waves (SIGWs) in metric teleparallel gravity with the Nieh-Yan (NY) term, which results in parity violation during the radiation-dom…
Scalar induced gravitational waves in symmetric teleparallel gravity with a parity-violating term
Fengge Zhang, Jia-Xi Feng, Xian Gao
Gravitational waves (GWs) are useful to test gravitational theories and to probe the physics in the early universe. In this paper, we investigate the scalar induced gravitational w…
Scalar induced gravitational waves from Chern-Simons gravity during inflation era
Jia-Xi Feng, Fengge Zhang, Xian Gao
We investigate the scalar induced gravitational waves (SIGWs) in the Chern-Simons (CS) gravity with a dynamical scalar field during slow roll inflation. Due to the parity violation…
Circularly polarized scalar induced gravitational waves from the Chern-Simons modified gravity
Fengge Zhang, Jia-Xi Feng, Xian Gao
We investigate the scalar induced gravitational waves (SIGWs) in the Chern-Simons (CS) modified gravity during the radiation dominated era. The SIGWs are circularly polarized, whic…
Extended geometry of Gambini-Olmedo-Pullin polymer black hole and its quasinormal spectrum
Yu-Chen Liu, Jia-Xi Feng, Fu-Wen Shu +1
In this paper we systematically study a model of spherically symmetric polymer black holes recently proposed by Gambini, Olmedo, and Pullin (GOP). Within the framework of loop quan…
Rotations of the polarization of a gravitational wave propagating in Universe
Jia-Xi Feng, Fu-Wen Shu, Anzhong Wang
In this paper, we study the polarization of a gravitational wave (GW) emitted by an astrophysical source at a cosmic distance propagating through the Friedmann-Lemaître-Robertson-W…
Theoretical and observational constraints on regularized 4 Einstein-Gauss-Bonnet gravity
Jia-Xi Feng, Bao-Min Gu, Fu-Wen Shu
Regularized Einstein-Gauss-Bonnet (EGB) theory of gravity in four dimensions is a new attempt to include nontrivial contributions of Gauss-Bonnet term. In this paper, we make a det…
Nodal Manifolds Bounded by Exceptional Points on Non-Hermitian Honeycomb Lattices and Electrical-Circuit Realizations
Kaifa Luo, Jiajin Feng, Y. X. Zhao +1
Topological semimetals feature a diversity of nodal manifolds including nodal points, various nodal lines and surfaces, and recently novel quantum states in non-Hermitian systems h…