140 citations · 995 across the 59 of their papers we have counts for
15 papers · 1 filter
Classical Noise in Transient USR Inflation
Harish D. N., Chen-Pin Yeh, Da-Shin Lee
In single-field inflation, linear perturbations originate as quantum fluctuations and undergo a quantum-to-classical transition on super-horizon scales as the decaying mode of the…
Inspiral and Plunging Orbits in Kerr-Newman Spacetimes
Yu-Chung Ko, Da-Shin Lee, Chi-Yong Lin
We present the analytical solutions for the trajectories of particles that spiral and plunge inward the event horizon along the timelike geodesics following general non-equatorial…
Homoclinic orbits in Kerr-Newman black holes
Yi-Ting Li, Chen-Yu Wang, Da-Shin Lee +1
We present the exact solutions of the homoclinic orbits for the timelike geodesics of the particle on the general nonequatorial orbits in the Kerr-Newman black holes. The homoclini…
Analogous Hawking radiation from gapped excitations in a transonic flow of binary Bose-Einstein condensates
Wei-Can Syu, Da-Shin Lee
We have studied analytically the approximate solutions to the gapped mode equations in the hydrodynamic regime for a class of binary Bose-Einstein condensate acoustic black holes.…
Null and time-like geodesics in Kerr-Newman black hole exterior
Chen-Yu Wang, Da-Shin Lee, Chi-Yong Lin
We study the null and time-like geodesics of the light and the neutral particles respectively in the exterior of Kerr-Newman black holes. The geodesic equations are known to be wri…
Gravitational time delay effects by Kerr and Kerr-Newman black holes in strong field limits
Tien Hsieh, Da-Shin Lee, Chi-Yong Lin
We study the time delay between two relativistic images due to strong gravitational lensing of the light rays caused by the Kerr and Kerr-Newman black holes. The trajectories of th…