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cond-mat.stat-mech2026
Role of System-Bath Interaction in Non-Markovian Quantum Brownian Otto Cycles
Haena Shim, Joonhyun Yeo
We study finite-time quantum Otto cycles whose working medium is a harmonic oscillator undergoing a quantum Brownian motion described by the Caldeira-Leggett model when the oscilla…
cond-mat.stat-mech2025
Structure of Quantum Mean Force Gibbs States for Coupled Harmonic Systems
Joonhyun Yeo, Haena Shim
An open quantum system interacting with a heat bath at given temperature is expected to reach the mean force Gibbs (MFG) state as a steady state. The MFG state is given by tracing…
cond-mat.stat-mech2014
Ground state energy of -state Potts model: the minimum modularity
Jae Sung Lee, Sungmin Hwang, Joonhyun Yeo +2
A wide range of interacting systems can be described by complex networks. A common feature of such networks is that they consist of several communities or modules, the degree of wh…