51 citations · 120 across the 10 of their papers we have counts for
10 papers
Vacuum stress tensor of spinor fields in de Sitter space
Xuan Ye, Yang Zhang
We study the regularized vacuum stress tensor of spinor fields in de Sitter space and its possible contribution to the cosmological constant. Using adiabatic regularization, we sho…
The Conserved Effective Stress Tensor of Gravitational Wave
Yang Zhang, Xuan Ye
We present a detailed study of the effective stress tensor of gravitational wave (GW) as the source for the background Einstein equation and examine three candidates in literature.…
Regularized stress tensor of vector fields in de Sitter space
Yang Zhang, Xuan Ye
We study the Stueckelberg field in de Sitter space, which is a massive vector field with the gauge fixing (GF) term . We obtain the vacuum stress te…
Maxwell field with gauge fixing term in the radiation- and matter-dominant stages: exact solution and stress tensor
Xuan Ye, Yang Zhang
We study the Maxwell field with a general gauge fixing (GF) term in the radiation-dominant (RD) and matter-dominant (MD) stages of expanding Universe, as a continuation to the prev…
Distinct topological configurations of equatorial timelike circular orbit for spherically symmetric (hairy) black holes
Xu Ye, Shao-Wen Wei
Topology is a promising approach toward to the light ring in a generic black hole background, and equatorial timelike circular orbit in a stationary black hole background. In this…
Maxwell field with gauge fixing term in de Sitter space: exact solution and stress tensor
Yang Zhang, Xuan Ye
The Maxwell field with a general gauge fixing (GF) term is nontrivial, not only the longitudinal and temporal modes are mixed up in the field equations, but also unwanted consequen…
Point-splitting regularization of the stress tensor of a coupling scalar field in de Sitter space
Xuan Ye, Yang Zhang, Bo Wang
We perform the point-splitting regularization on the vacuum stress tensor of a coupling scalar field in de Sitter space under the guidance from the adiabatically regularized Green'…
QED effects on phase transition and Ruppeiner geometry of Euler-Heisenberg-AdS black holes
Xu Ye, Zi-Qing Chen, Ming-Da Li +1
Taking the quantum electrodynamics (QED) effect into account, we study the black hole phase transition and Ruppeiner geometry for the Euler-Heisenberg anti-de Sitter black hole in…
A massless scalar field in Robertson-Walker spacetimes: Adiabatic regularization and Green's function
Yang Zhang, Bo Wang, Xuan Ye
We study adiabatic regularization of a coupling massless scalar field in general spatially flat Robertson-Walker (RW) spacetimes. For the conformally-coupling, the 0th-order regula…
Adiabatic regularization and Green's function of a scalar field in de Sitter space: Positive energy spectrum and no trace anomaly
Yang Zhang, Xuan Ye, Bo Wang
In the conventional adiabatic regularization the vacuum ultraviolet divergences of a quantum field in curved spacetime are removed by subtracting the -mode of the stress tensor…