195 citations · 2.8k across the 154 of their papers we have counts for
155 papers
Equation of State Parameters for Fluid of Stringy Extended Objects in Cosmology with Cosmological Constant
Soon-Tae Hong, Bum-Hoon Lee
We construct the strong energy conditions (SECs) for both massive and massless stringy extended objects in the higher dimensional cosmology (HDC) with cosmological constant . Ex…
Global causality constraints in rotating scalar-tensor spacetimes
Bum-Hoon Lee, Nils A. Nilsson, Somyadip Thakur
Modified gravity is often formulated as an effective field theory (EFT), where higher-order corrections parametrize departures from General Relativity. We argue that such correctio…
Superradiance in the Kerr-Taub-NUT spacetime
Bum-Hoon Lee, Wonwoo Lee, Yong-Hui Qi
Superradiance is the effect of field waves being amplified during reflection from a charged or rotating black hole. In this paper, we study the low-energy dynamics of super-radiant…
Is Cosmic Birefringence model-dependent?
Lu Yin, Joby Kochappan, Tuhin Ghosh +1
Exciting clues to isotropic cosmic birefringence have recently been detected in the cross-power spectra of the polarization data of the cosmic microwave background (CMB). Earl…
WIMPs in Dilatonic Einstein Gauss-Bonnet Cosmology
Anirban Biswas, Arpan Kar, Bum-Hoon Lee +5
We use the Weakly Interacting Massive Particle (WIMP) thermal decoupling scenario to probe Cosmologies in dilatonic Einstein Gauss-Bonnet (dEGB) gravity, where the Gauss-Bonnet ter…
Homoclinic orbit and the violation of the chaos bound around a black hole with anisotropic matter fields
Soyeon Jeong, Bum-Hoon Lee, Hocheol Lee +1
We study the homoclinic orbit and the violation of chaos bound, which are obtained by particle motions around a black hole that coexist with anisotropic matter fields. The homoclin…