5 papers
A master equation for Carter-separable stationary axisymmetric spacetimes and compatible sources
Hyeong-Chan Kim
We show that the remaining diagonal Einstein equations in the Carter-projective sector of stationary axisymmetric spacetimes are equivalent to a single sourced master equation. The…
Thermalization-Induced Entropy-Rate Representation of Internal Energy in a Damped Quantum Oscillator
Hyeong-Chan Kim, Youngone Lee
We study a harmonic oscillator weakly coupled to a thermal bath and evolving under the standard quantum-optical master equation. For zero-mean Gaussian states, entropy alone does n…
Collision of two spinning billiard balls and the role of table
Hyeong-Chan Kim
We study the collision dynamics of a spinning cue ball approaching a static object ball with equal mass on a plane, common in billiards. While typical collisions in billiards are n…
Temperature of a steady system around a black hole
Hyeong-Chan Kim
We study the issue of temperature in a steady system around a black hole event horizon, contrasting it with the appearance of divergence in a thermal equilibrium system. We focus o…
Temperature upper bound of an ideal gas
Hyeong-Chan Kim
We study thermodynamics of a heat-conducting ideal gas system. The study is based on i) the first law of thermodynamics from action formulation which expects heat-dependence of ene…