102 citations · 469 across the 25 of their papers we have counts for
25 papers
Mass-induced Mpemba effect in a polymer-bead system
Hosung Kwak, Yongjoo Baek, Hawoong Jeong
We propose a physically motivated model in which the Mpemba effect is induced by the system's inertia. The model describes a polymer undergoing a denaturation transition whose forc…
Exploring how deep learning decodes anomalous diffusion via Grad-CAM
Jaeyong Bae, Yongjoo Baek, Hawoong Jeong
While deep learning has been successfully applied to the data-driven classification of anomalous diffusion mechanisms, how the algorithm achieves the feat still remains a mystery.…
Boltzmann Sampling by Diabatic Quantum Annealing
Ju-Yeon Gyhm, Gilhan Kim, Hyukjoon Kwon +1
Boltzmann sampling is a central component of many computational frameworks, including numerous algorithms in machine learning. Although quantum annealers have been investigated as…
Unified Hierarchical Relationship Between Thermodynamic Tradeoff Relations
Euijoon Kwon, Jong-Min Park, Jae Sung Lee +1
Recent years have witnessed a surge of discoveries in the studies of thermodynamic inequalities: the thermodynamic uncertainty relation (TUR) and the entropic bound (EB) provide a…
Symmetry-breaking motility of penetrable objects in active fluids
Ki-Won Kim, Yunsik Choe, Yongjoo Baek
We investigate how a symmetric penetrable object immersed in an active fluid becomes motile due to a negative drag acting in the direction of its velocity. While similar phenomena…
Tradeoff of generalization error in unsupervised learning
Gilhan Kim, Hojun Lee, Junghyo Jo +1
Finding the optimal model complexity that minimizes the generalization error (GE) is a key issue of machine learning. For the conventional supervised learning, this task typically…
-divergence Improves the Entropy Production Estimation via Machine Learning
Euijoon Kwon, Yongjoo Baek
Recent years have seen a surge of interest in the algorithmic estimation of stochastic entropy production (EP) from trajectory data via machine learning. A crucial element of such…
Effects of the self-propulsion parity on the efficiency of a fuel-consuming active heat engine
Yongjae Oh, Yongjoo Baek
We propose a thermodynamically consistent, analytically tractable model of steady-state active heat engines driven by both temperature difference and a constant chemical driving. W…
Bodies in an Interacting Active Fluid: Far-Field Influence of a Single Body and Interaction Between Two Bodies
Omer Granek, Yongjoo Baek, Yariv Kafri +1
Because active particles break time-reversal symmetry, an active fluid can sustain currents even without an external drive. We show that when a passive body is placed in a fluid of…
Finite-size and finite-time effects in large deviation functions near dynamical symmetry breaking transitions
Yongjoo Baek, Yariv Kafri, Vivien Lecomte
We introduce and study a class of particle hopping models consisting of a single box coupled to a pair of reservoirs. Despite being zero-dimensional, in the limit of large particle…
Role of hubs in the synergistic spread of behavior
Yongjoo Baek, Kihong Chung, Meesoon Ha +2
The spread of behavior in a society has two major features: the synergy of multiple spreaders and the dominance of hubs. While strong synergy is known to induce mixed-order transit…
Dynamical phase transitions in the current distribution of driven diffusive channels
Yongjoo Baek, Yariv Kafri, Vivien Lecomte
We study singularities in the large deviation function of the time-averaged current of diffusive systems connected to two reservoirs. A set of conditions for the occurrence of phas…
Generic long-range interactions between passive bodies in an active fluid
Yongjoo Baek, Alexandre P. Solon, Xinpeng Xu +2
Because active particles break time-reversal symmetry, a single non-spherical body placed in an active fluid generates currents. We show that when two or more passive bodies are pl…
Effects of a local defect on one-dimensional nonlinear surface growth
Hyungjoon Soh, Yongjoo Baek, Meesoon Ha +1
The slow-bond problem is a long-standing question about the minimal strength of a local defect with global effects on the Kardar--Parisi--Zhang (KPZ) universality cl…
Dynamical symmetry breaking and phase transitions in driven diffusive systems
Yongjoo Baek, Yariv Kafri, Vivien Lecomte
We study the probability distribution of a current flowing through a diffusive system connected to a pair of reservoirs at its two ends. Sufficient conditions for the occurrence of…
Extreme current fluctuations of boundary-driven systems in the large-N limit
Yongjoo Baek, Yariv Kafri, Vivien Lecomte
Current fluctuations in boundary-driven diffusive systems are, in many cases, studied using hydrodynamic theories. Their predictions are then expected to be valid for currents whic…
Universality classes of generalized epidemic process on random networks
Kihong Chung, Yongjoo Baek, Meesoon Ha +1
We present a self-contained discussion of the universality classes of the generalized epidemic process (GEP) on Poisson random networks, which is a simple model of social contagion…
Singularities in large deviation functions
Yongjoo Baek, Yariv Kafri
Large deviation functions of configurations exhibit very different behaviors in and out of thermal equilibrium. In particular, they exhibit singularities in a broad range of non-eq…
Effects of junctional correlations in the totally asymmetric simple exclusion process on random regular networks
Yongjoo Baek, Meesoon Ha, Hawoong Jeong
We investigate the totally asymmetric simple exclusion process on closed and directed random regular networks, which is a simple model of active transport in the one-dimensional se…
Comment on "Fluctuation theorem for hidden entropy production"
Yongjoo Baek, Meesoon Ha, Hawoong Jeong +1
Recently, Kawaguchi and Nakayama (KN) [Phys. Rev. E {\bf 88}, 022147 (2013)] showed that the hidden entropy production associated with a coarse-graining procedure obeys the integra…
Generalized epidemic process on modular networks
Kihong Chung, Yongjoo Baek, Daniel Kim +2
Social reinforcement and modular structure are two salient features observed in the spreading of behavior through social contacts. In order to investigate the interplay between the…
Impact of sequential disorder on the scaling behavior of airplane boarding time
Yongjoo Baek, Meesoon Ha, Hawoong Jeong
Airplane boarding process is an example where disorder properties of the system are relevant to the emergence of universality classes. Based on a simple model, we present a systema…
Fundamental Structural Constraint of Random Scale-Free Networks
Yongjoo Baek, Daniel Kim, Meesoon Ha +1
We study the structural constraint of random scale-free networks that determines possible combinations of the degree exponent and the upper cutoff in the thermodynamic li…
Absorbing states of zero-temperature Glauber dynamics in random networks
Yongjoo Baek, Meesoon Ha, Hawoong Jeong
We study zero-temperature Glauber dynamics for Ising-like spin variable models in quenched random networks with random zero-magnetization initial conditions. In particular, we focu…