60 citations · 350 across the 15 of their papers we have counts for
15 papers
Thermodynamic constraints on kinetic perturbations of homogeneous driven diffusions
Qi Gao, Hyun-Myung Chun, Jordan M. Horowitz
We analyze the static response to kinetic perturbations of nonequilibrium steady states that can be modeled as diffusions. We demonstrate that kinetic response is purely a nonequil…
Trade-offs between number fluctuations and response in nonequilibrium chemical reaction networks
Hyun-Myung Chun, Jordan M. Horowitz
We study the response of chemical reaction networks driven far from equilibrium to logarithmic perturbations of reaction rates. The response of the mean number of a chemical specie…
Heterogeneous Mean First-Passage Time Scaling in Fractal Media
Hyun-Myung Chun, Sungmin Hwang, Byungnam Kahng +2
The mean first passage time~(MFPT) of random walks is a key quantity characterizing dynamic processes on disordered media. In a random fractal embedded in the Euclidean space, the…
Thermodynamic constraints on the nonequilibrium response of one-dimensional diffusions
Qi Gao, Hyun-Myung Chun, Jordan M. Horowitz
We analyze the static response to perturbations of nonequilibrium steady states that can be modeled as one-dimensional diffusions on the circle. We demonstrate that an arbitrary pe…
Nonequilibrium Green-Kubo relations for hydrodynamic transport from an equilibrium-like fluctuation-response equality
Hyun-Myung Chun, Qi Gao, Jordan M. Horowitz
Near equilibrium, Green-Kubo relations provide microscopic expressions for macroscopic transport coefficients in terms of equilibrium correlation functions. At their core, they are…
Exactly solvable two-terminal heat engine with asymmetric Onsager coefficients: Origin of the power-efficiency bound
Jae Sung Lee, Jong-Min Park, Hyun-Myung Chun +2
An engine producing a finite power at the ideal (Carnot) efficiency is a dream engine, which is not prohibited by the thermodynamic second law. Some years ago, a two-terminal heat…
Free diffusion bounds the precision of currents in underdamped dynamics
Lukas P. Fischer, Hyun-Myung Chun, Udo Seifert
The putative generalization of the thermodynamic uncertainty relation (TUR) to underdamped dynamics is still an open problem. So far, bounds that have been derived for such a dynam…
Quantum mechanical bound for efficiency of quantum Otto heat engine
Jong-Min Park, Sangyun Lee, Hyun-Myung Chun +1
The second law of thermodynamics constrains that the efficiency of heat engines, classical or quantum, cannot be greater than the universal Carnot efficiency. We discover another b…
Effect of a magnetic field on the thermodynamic uncertainty relation
Hyun-Myung Chun, Lukas P. Fischer, Udo Seifert
The thermodynamic uncertainty relation provides a universal lower bound on the product of entropy production and the fluctuations of any current. While proven for Markov dynamics o…
Universal Property of the Housekeeping Entropy Production
Hyun-Myung Chun, Jae Dong Noh
The entropy production of a nonequilibrium system with broken detailed balance is a random variable whose mean value is nonnegative. Among the total entropy production, the houseke…
Emergence of Nonwhite Noise in Langevin Dynamics with Magnetic Lorentz Force
Hyun-Myung Chun, Xavier Durang, Jae Dong Noh
We investigate the low mass limit of Langevin dynamics for a charged Brownian particle driven by the magnetic Lorentz force. In the low mass limit, velocity variables relaxing quic…
Microscopic theory for the time irreversibility and the entropy production
Hyun-Myung Chun, Jae Dong Noh
In stochastic thermodynamics, the entropy production of a thermodynamic system is defined by the irreversibility measured by the logarithm of the ratio of the path probabilities in…
Efficiency at maximum power and efficiency fluctuations in a linear Brownian heat engine model
Jong-Min Park, Hyun-Myung Chun, Jae Dong Noh
We investigate stochastic thermodynamics of a two-particles Langevin system. Each particle is in contact with a heat bath at different temperatures and , respecti…
Macroscopic Time-Reversal Symmetry Breaking at Nonequilibrium Phase Transition
Pyoung-Seop Shim, Hyun-Myung Chun, Jae Dong Noh
We study the entropy production in a macroscopic nonequilibrium system that undergoes an order-disorder phase transition. Entropy production is a characteristic feature of nonequil…
Hidden entropy production by fast variables
Hyun-Myung Chun, Jae Dong Noh
We investigate nonequilibrium underdamped Langevin dynamics of Brownian particles that interact through a harmonic potential with coupling constant and are in thermal contact w…