72 citations · 74 across the 7 of their papers we have counts for
7 papers
From Lagrangian to Hamiltonian formulations of the Palatini action
SangChul Yoon
We work on the Lagrangian and the Hamiltonian formulations of the Palatini action. In the Lagrangian formulation, we find that we need to assume the metric compatibility and the to…
Lagrangian formulation of the Palatini action
SangChul Yoon
We work on the Lagrangian formulation of the Palatini action. We find that we must assume the metric compatibility condition for the Palatini action to describe General Relativity,…
Lagrangian and Hamiltonian formulations of the Palatini action
SangChul Yoon
We derive the Ashtekar-Barbero variables in Loop Quantum Gravity(LQG) starting from the Palatini action. We find that we need either the torsion-free condition or the compatibility…
Anomaly-free representations of the holonomy-flux algebra
SangChul Yoon
We work on the uniqueness, gr-qc/0504147, of representations of the holonomy-flux algebra in loop quantum gravity. We argue that for analytic diffeomorphisms, the flux operators ca…
Hawking radiation and Quasinormal modes
SangChul Yoon
The spectrum of Hawking radiation by quantum fields in the curved spacetime is continuous, so the explanation of Hawking radiation using quasinormal modes can be suspected to be im…
From a Thick to a Thin Supergravity Domain Wall
Francisco A. Brito, Mirjam Cvetic, SangChul Yoon
Within D=4 N=1 supergravity theory we obtain an effective theory of the thin wall limit for a flat domain wall configuration, interpolating between isolated supersymmetric extrema…