3 papers
gr-qc2024
Power spectra and circular polarization of primordial gravitational waves with parity and Lorentz violations
Tian-Chen Li, Tao Zhu, Wen Zhao +1
The violations of parity and Lorentz symmetries in gravity can change the propagating properties of gravitational waves (GWs) in the cosmological background, which can arise from a…
gr-qc2024
A regular MOG black hole's impact on shadows and gravitational weak lensing in the presence of quintessence field
Ahmad Al-Badawi, Sanjar Shaymatov, Mirzabek Alloqulov +1
We investigate the impact of the modified gravity (MOG) field and the quintessence scalar field on horizon evolution, black hole (BH) shadow and the weak gravitational lensing arou…
gr-qc2023
Uniform Asymptotic Approximation Method with Pöschl-Teller Potential
Rui Pan, John Joseph Marchetta, Jamal Saeed +4
In this paper, we study analytical approximate solutions of the second-order homogeneous differential equations with the existence of only two turning points (but without poles), b…