Park, Hyunggyu
QUC Distinguished Professor
Statistical Physics
Hyunggyu Park has a broad experience in investigating emergent properties of general many body systems, ranging from classical magnetic systems, incommensurate systems, and quasicrystals to nonequilibrium stochastic complex systems. During the last decades, he focused on nonequilibrium phase transitions and critical phenomena and introduced several important concepts on how the system evolves into frozen states. Systems with frozen states show extensive applications from selforganized criticality to glassy systems with multiply degenerated ground states. Current interests include nonequilibrium fluctuation theorems, disordered systems, synchronization, ratchets, traffic flow, and networks.
 2010  2012 : Member, Basic Reseach Promotion Commission in National Science and Technology Council
 1975  1979 : Department of Physics, Seoul National University, Korea (BS)
 1979  1981 : Department of Physics, Seoul National University, Korea (MS)
 1982  1983 : Department of Physics, University of California at Santa Cruz
 1983  1988 : Department of Physics, University of Washington, USA (PhD)
 1988  1990 : Postdoctoral Research Associate, Department of Physics, Carnegie Mellon University
 1990  1992 : Research Associate, Department of Physics, Boston University
 1992  1996 : Assistant Professor, Department of Physics, Inha University
 1996  2001 : Associate Professor, Department of Physics, Inha University
 1998  1999 : Visiting Scientist, Department of Physics, University of Washington
 1999  2001 : Chair of Department of Physics, Inha University
 2001  2002 : Professor, Department of Physics, Inha University
 2002  Present : Professor, School of Physics, KIAS
 2003  2006 : Steering Committee Member of KIAS
 2005  2006 : Chair of School of Physics, KIAS
 2006  2008 : Chair of Statistical Division of the Korean Physical Society
 2007  2009 : Program Manager, Korea Research Foundation
 2007 : Dean of Faculty, KIAS
 2008  2009 : Vice President, KIAS
 2009  2010 : Visiting Professor, Department of Physics, University of Washington
 2010  2012 : Review Board Member, National Research Foundation of Korea
 1986 : Joseph H. Weis Prize at University of Washington
 2008 : Haksul (Science) award from the Korean Physical Society
Publications at KIAS

Multidimensional entropic bound: Estimator of entropy production for general Langevin dynamics with an arbitrary timedependent protocol
Physical Review Research, 2023 
Speed Limit for a Highly Irreversible Process and Tight FiniteTime Landauer?s Bound
PHYSICAL REVIEW LETTERS, 2022 
Effects of the nonMarkovianity and nonGaussianity of active environmental noises on engine performance
PHYSICAL REVIEW E, 2022 
Selfrepelling bipedal exploration process
PHYSICAL REVIEW E, 2021 
Universal form of thermodynamic uncertainty relation for Langevin dynamics
PHYSICAL REVIEW E, 2021 
Geometryinduced rectification for an active object
PHYSICAL REVIEW RESEARCH, 2021 
Thermodynamic uncertainty relation in the overdamped limit with a magnetic Lorentz force
PHYSICAL REVIEW RESEARCH, 2021 
Brownian heat engine with active reservoirs
PHYSICAL REVIEW E, 2020 
Thermodynamic cost of synchronizing a population of beating cilia
JOURNAL OF STATISTICAL MECHANICSTHEORY AND EXPERIMENT, 2020 
Active microrheology of a bulk metallic glass
SCIENCE ADVANCES, 2020 
Exactly solvable twoterminal heat engine with asymmetric Onsager coefficients: Origin of the powerefficiency bound
PHYSICAL REVIEW E, 2020 
Carnot Efficiency and ZeroEntropy Production Rate Do Not Guarantee Reversibility of a Process
JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 2019 
Thermodynamic uncertainty relation for underdamped Langevin systems driven by a velocitydependent force
PHYSICAL REVIEW E, 2019 
Twodimensional superroughening in the threedimensional Ising model
PHYSICAL REVIEW E, 2019 
Three heats in a strongly coupled system and bath
PHYSICAL REVIEW E, 2019 
Nonuniversality of heatengine efficiency at maximum power
PHYSICAL REVIEW E, 2018 
Characterizing the nature of the rigidity transition
PHYSICAL REVIEW E, 2018 
Stochastic thermodynamics and hierarchy of fluctuation theorems with multiple reservoirs
NEW JOURNAL OF PHYSICS, 2018 
Additivity of multiple heat reservoirs in the Langevin equation
PHYSICAL REVIEW E, 2018 
Entropy and Thermodynamic Second Laws: New Perspective  Stochastic Thermodynamics and Fluctuation Theorems
JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 2018 
Carnot efficiency is reachable in an irreversible process
SCIENTIFIC REPORTS, 2017 
Nonequilibrium steady states in Langevin thermal systems
PHYSICAL REVIEW E, 2017 
Characterizing rare fluctuations in soft particulate flows
NATURE COMMUNICATIONS, 2017 
Information thermodynamics for a multifeedback process with time delay
EPL, 2017 
Housekeeping entropy in continuous stochastic dynamics with oddparity variables
JOURNAL OF STATISTICAL MECHANICSTHEORY AND EXPERIMENT, 2016 
Unconventional entropy production in the presence of momentumdependent forces
JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 2016 
Overdamped limit and inversefriction expansion for Brownian motion in an inhomogeneous medium
PHYSICAL REVIEW E, 2015 
Total cost of operating an information engine
NEW JOURNAL OF PHYSICS, 2015 
Finitesize scaling, dynamic fluctuations, and hyperscaling relation in the Kuramoto model
PHYSICAL REVIEW E, 2015 
Heat fluctuations and initial ensembles
PHYSICAL REVIEW E, 2014 
The statistical mechanics of the coagulationdiffusion process with a stochastic reset
JOURNAL OF PHYSICS AMATHEMATICAL AND THEORETICAL, 2014 
Nature of synchronization transitions in random networks of coupled oscillators
PHYSICAL REVIEW E, 2014 
Work fluctuations in a timedependent harmonic potential: Rigorous results beyond the overdamped limit
PHYSICAL REVIEW E, 2013 
Modified saddlepoint integral near a singularity for the large deviation function
JOURNAL OF STATISTICAL MECHANICSTHEORY AND EXPERIMENT, 2013 
Multiple Dynamic Transitions in Nonequilibrium Work Fluctuations
PHYSICAL REVIEW LETTERS, 2013 
Linkdisorder fluctuation effects on synchronization in random networks
PHYSICAL REVIEW E, 2013 
Everlasting initial memory threshold for rare events in equilibration processes
PHYSICAL REVIEW E, 2013 
Fluctuation Theorems and Entropy Production with OddParity Variables
PHYSICAL REVIEW LETTERS, 2013 
Entanglement versus mutual information in quantum spin chains
JOURNAL OF STATISTICAL MECHANICSTHEORY AND EXPERIMENT, 2012 
Rectification of Spatial Disorder
PHYSICAL REVIEW LETTERS, 2012 
Continuity of the explosive percolation transition
PHYSICAL REVIEW E, 2011 
Scaling of cluster heterogeneity in percolation transitions
PHYSICAL REVIEW E, 2011 
Nonequilibrium fluctuations for linear diffusion dynamics
PHYSICAL REVIEW E, 2011 
Collective helping and bystander effects in coevolving helping networks
PHYSICAL REVIEW E, 2010 
Critical behavior of the Ising model in annealed scalefree networks
PHYSICAL REVIEW E, 2009 
Relaxation dynamics of an elastic string in random media
PHYSICAL REVIEW E, 2009 
Critical behavior of the contact process in annealed scalefree networks
PHYSICAL REVIEW E, 2009 
Crossover from the parityconserving pair contact process with diffusion to other universality classes
PHYSICAL REVIEW E, 2009 
Kinetics of a nonGlauberian Ising model: global observables and exact results
JOURNAL OF STATISTICAL MECHANICSTHEORY AND EXPERIMENT, 2009 
EMBEDDINGS OF LINE IN THE PLANE AND ABHYANKARMOH EPIMORPHISM THEOREM
BULLETIN OF THE KOREAN MATHEMATICAL SOCIETY, 2009 
Three different routes from the directed Ising to the directed percolation class
PHYSICAL REVIEW E, 2008 
Nonequilibrium phase transitions into absorbing states
EUROPEAN PHYSICAL JOURNAL B, 2008 
Boundaryinduced abrupt transition in the symmetric exclusion process
PHYSICAL REVIEW E, 2008 
Finitesize scaling of synchronized oscillation on complex networks
PHYSICAL REVIEW E, 2007 
Entrainment transition in populations of random frequency oscillators
PHYSICAL REVIEW LETTERS, 2007 
Nontrivial critical crossover between directed percolation models: Effect of infinitely many absorbing states
PHYSICAL REVIEW E, 2007 
Construction of equilibrium networks with an energy function
JOURNAL OF PHYSICS AMATHEMATICAL AND THEORETICAL, 2007 
Finitesize scaling in complex networks
PHYSICAL REVIEW LETTERS, 2007 
Dynamic instability transitions in onedimensional driven diffusive flow with nonlocal hopping
PHYSICAL REVIEW E, 2007 
Comment on "NonMeanField behavior of the contact process on scalefree networks"
PHYSICAL REVIEW LETTERS, 2007 
Anomalous binder cumulant and lack of selfaverageness in systems with quenched disorder
JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 2006 
Equivalence of operatorsplitting schemes for the integration of the Langevin equation
JOURNAL OF STATISTICAL MECHANICSTHEORY AND EXPERIMENT, 2006 
Proceedings of the 13(th) Workshop on Statistical Physics  August 810, 2005  Suwon, Korea
JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 2006 
Crossover from the pair contact process with diffusion to directed percolation
PHYSICAL REVIEW E, 2006 
Generating function for particlenumber probability distribution in directed percolation
JOURNAL OF PHYSICS AMATHEMATICAL AND GENERAL, 2005 
Collective synchronization in spatially extended systems of coupled oscillators with random frequencies
PHYSICAL REVIEW E, 2005 
Asymmetrically coupled directed percolation systems
PHYSICAL REVIEW LETTERS, 2005 
Slow relaxation in the Ising model on a smallworld network with strong longrange interactions
PHYSICAL REVIEW E, 2005 
Driven pair contact process with diffusion
PHYSICAL REVIEW LETTERS, 2005 
Scalefree dynamics emerging from information transfer
EUROPHYSICS LETTERS, 2005 
Cluster meanfield approximations with the coherentanomalymethod analysis for the driven pair contact process with diffusion
PHYSICAL REVIEW E, 2005 
Collective phase synchronization in locally coupled limitcycle oscillators
PHYSICAL REVIEW E, 2004 
Stability of vacuum in coupled directed percolation processes
PHYSICAL REVIEW E, 2004 
Universality class of absorbing transitions with continuously varying critical exponents
PHYSICAL REVIEW E, 2004 
Comment on "Restricted curvature model with suppression of extremal height"
PHYSICAL REVIEW E, 2003 
Dynamical surface structures in multiparticlecorrelated surface growths
PHYSICAL REVIEW E, 2002 
Fluctuations of selfflattening surfaces
PHYSICAL REVIEW E, 2002
Publications(Career)

Stochastic thermodynamics and hierarchy of fluctuation theorems with multiple reservoirs
NEW JOURNAL OF PHYSICS, v.20, 83010, 2018 
Nonuniversality of heatengine efficiency at maximum power
PHYSICAL REVIEW E, 98(5), 52137, 2018 
Entropy and Thermodynamic Second Laws: New Perspective  Stochastic Thermodynamics and Fluctuation Theorems
JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 72(15), 14131420, 2018 
Characterizing the nature of the rigidity transition
PHYSICAL REVIEW E, 98(5), 52905, 2018 
Additivity of multiple heat reservoirs in the Langevin equation
PHYSICAL REVIEW E, 97(6), 62135, 2018 
Information thermodynamics for a multifeedback process with time delay
EPL v.117(1), 10011. 2017 
Characterizing rare fluctuations in soft particulate flows
NATURE COMMUNICATIONS v.8, 11. 2017. 
Nonequilibrium steady states in Langevin thermal systems
PHYSICAL REVIEW E v.96(2), 022134. 2017. 
Carnot efficiency is reachable in an irreversible process
SCIENTIFIC REPORTS v.7, 10725. 2017. 
Unconventional entropy production in the presence of momentumdependent forces
JOURNAL OF THE KOREAN PHYSICAL SOCIETY v.68(5), 633638p. 2016. 
Overdamped limit and inversefriction expansion for Brownian motion in an inhomogeneous medium
PHYSICAL REVIEW E, v.91 no.6 (2015) 062118 
Total cost of operating an information engine
NEW JOURNAL OF PHYSICS, v.17 (2015) 085001 
Finitesize scaling, dynamic fluctuations, and hyperscaling relation in the Kuramoto model
PHYSICAL REVIEW E, v.92 no.2 (2015) 022122 
Nature of synchronization transitions in random networks of coupled oscillators
PHYSICAL REVIEW E, v.89 no.1 (2014) 012810 
The statistical mechanics of the coagulationdiffusion process with a stochastic reset
JOURNAL OF PHYSICS AMATHEMATICAL AND THEORETICAL, v.47 no.4 (2014) 045002 
Heat fluctuations and initial ensembles
PHYSICAL REVIEW E, v.90 no.3 (2014) 032117 
Fluctuation Theorems and Entropy Production with OddParity Variables
PHYSICAL REVIEW LETTERS, v.110 no.5 (2013) 050602 
Everlasting initial memory threshold for rare events in equilibration processes
PHYSICAL REVIEW E, v.87 no.2 (2013) 020104 
Linkdisorder fluctuation effects on synchronization in random networks
PHYSICAL REVIEW E, v.87 no.4 (2013) 042105 
Multiple Dynamic Transitions in Nonequilibrium Work Fluctuations
PHYSICAL REVIEW LETTERS, v.111 no.13 (2013) 130601 
Modified saddlepoint integral near a singularity for the large deviation function
JOURNAL OF STATISTICAL MECHANICSTHEORY AND EXPERIMENT (2013) P11002 
Work fluctuations in a timedependent harmonic potential: Rigorous results beyond the overdamped limit
PHYSICAL REVIEW E, v.88 no.6 (2013) 062102 
Entanglement versus mutual information in quantum spin chains
JOURNAL OF STATISTICAL MECHANICSTHEORY AND EXPERIMENT (2012) P10026 
Rectification of spatial disorder
PHYSICAL REVIEW LETTERS, v.108 no.6 (2012) 060601 
Continuity of the explosive percolation transition
Physical Review E 84, 020101(R) (2011/8/3) 
Scaling of cluster heterogeneity in percolation transitions
Physical Review E 84, 010101(R) (2011/7/20) 
Nonequilibrium fluctuations for linear diffusion dynamics
Physical Review E 83, 061145 (2011/6/24) 
Collective helping and bystander effects in coevolving helping networks
Phys. Rev. E 81, 066108(2010) 
Kinetics of a nonglauberian Ising model: global observables and exact results
J. Stat. Mech. P03023 (2009) 
Crossover from the parityconserving pair contact process with diffusion to other universality classes
Phys. Rev. E 79, 051130 (2009) 
Critical behavior of the contact process in annealed scalefree networks
Phys. Rev. E 78, 041128 (2009) 
Relaxation dynamics of an elastic string in random media
Phys. Rev. E 80, 040102(R) (2009) 
Critical behavior of the Ising model in annealed scalefree networks
Phys. Rev. E 80, 051127 (2009) 
Boundaryinduced abrupt transition in the symmetric exclusion process
Phys. Rev. E 77, 061118 (2008) 
Nonequilibrium phase transitions into absorbing states: Focused around the pair contact process with diffusion
Eur. Phy. J. B 64, 415 (2008) 
Three different routes from the directed Ising to the directed percolation class
Phys. Rev. E 78, 041128 (2008) 
Comment on “ Nonmeanfield behavior of the contact process on scalefree networks”
Phys. Rev. Lett. 98, 029801 (2007) 
Finitesize scaling in complex networks
Phys. Rev. Lett. 98, 258701 (2007) 
Dynamic instability transitions in 1D driven diffusive flow with nonlocal hopping
Phys. Rev. E 75, 061131 (2007) 
Construction of equilibrium networks with an energy function
J. Phys. A 40, 9723 (2007) 
Entrainment transition in populations of random frequency oscillators
Phys. Rev. Lett. 99, 184101 (2007) 
Nontrivial critical crossover between directed percolation models: Effect of infinitely many absorbing states
Phys. Rev. E 76, 051123 (2007) 
Finitesize scaling of synchronized oscillation on complex networks
Phys. Rev. E 76, 066104 (2007) 
Crossover from the pair contact proces with diffusion to directed percolation
Phys. Rev. E 73, 025105(R) (2006) 
Equivalence of operatorsplitting schemes for the integration of the Langevin equation
J. Stat. Mech. P08021 (2006) 
Anomalous Binder cumulant and lack of self averageness in systems with quenched disorder
J. Korean Phys. Soc. 49, L1885 (2006) 
Cluster mean field approximations with the coherent anomaly method analysis for the driven pair contact process with diffusion
Phys. Rev. E 71, 016137 (2005) 
Scalefree dynamics emerging from information transfer
Europhys. Lett. 69, 503 (2005) 
Driven pair contact process with diffusion
Phys. Rev. Lett. 94, 065701 (2005) 
Slow relaxation in the Ising model on a smallworld network with strong longrange interactions
Phys. Rev. E 71, 036103 (2005) 
Asymmetrically coupled directed percolation systems
Phys. Rev. Lett. 94, 145702 (2005) 
Generating function for particlenumber probability distribution in directed percolation
J. Phys. A 38, 8187 (2005) 
Collective synchronization in spatially extended systems of coupled oscillators with random frequencies
Phys. Rev. E 72, 036217 (2005) 
Universality class of absorbing transitions with continuously varying exponents
Phys. Rev. E 69, 016122 (2004) 
Stability of vacuum in coupled directed percolation processes
Phys. Rev. E 69, 066125 (2004) 
Factors that predict better synchronizability on complex networks
Phys. Rev. E 69, 067105 (2004) 
Collective phase synchronization in locallycoupled limitcycle oscillators
Phys. Rev. E 70, 045204(R) (2004) 
Comment on “Restricted curvature model with suppression of extremal height”
Phys. Rev. E 68, 053601 (2003) 
Dynamic surface structures in multiparticlecorrelated surface growths
Phys. Rev. E 66, 046123 (2002) 
Fluctuations of selfflattening surfaces
Phys. Rev. E 66, 040602(R) (2002) 
Relaxation of nonorder parameter field in directed Ising systems
J. Korean Phys. Soc. 38, 494 (2001) 
Twospecies branching annihilating random walks with one offspring
J. Korean Phys. Soc. 38, 490 (2001) 
Anomalous roughness, localization, and globally constrained random walks
Phys. Rev. E 64, 046131 (2001) 
Absorbingstate critical phenomena in interacting surface reaction models
Brazilian J. Phys. 30, 133 (2000) 
Anomalous roughness for dimer type surface growth
Phys. Rev. Lett. 84, 3891 (2000) 
Does hard core interaction change absorbingtype critical phenomena?
Phys. Rev. Lett. 85, 1682 (2000) 
Directed Ising type dynamic preroughening transition in one dimensional interfaces
Phys. Rev. E 59, 194 (1999) 
Interacting monomerdimer model with infinitely many absorbing states
Phys. Rev. E 59, 4683 (1999) 
Dynamic behavior of driven interfaces in models with two absorbing states
Phys. Rev. E 59, 4949 (1999) 
Active width at a slanted active boundary in directed percolation
Phys. Rev. E 60, 2496 (1999) 
Particle dynamics in a masscoalescence process
J. Phys. A 32, L495 (1999) 
Critical phenomena of nonequilibrium dynamical systems with two absorbing states
Phys. Rev. E 57, 6438 (1998) 
Exact solutions of a restricted ballistic deposition model on a onedimensional staircase
Phys. Rev. E 51, 1047 (1995) 
Dynamic scaling behavior of an interacting monomerdimer model
Phys. Rev. E 52, 5664 (1995) 
Critical behavior of an absorbing phase transition in an interacting monomerdimer model
Physica A 221, 97 (1995) 
Reentrant phase diagram of branching annihilating random walks with one and two offsp
Phys. Rev. E 52, 5955 (1995) 
Threestate Potts model on a triangular lattice
Phys. Rev. B 49, 12881 (1994) 
Critical behavior of an interacting monomerdimer model
Phys. Rev. Lett. 73, 2579 (1994) 
Excluded volume effect in heterogeneous catalysis: reactions between ‘dollars’ and ‘dimes’
J. Phys. A 26, 2071 (1993) 
Critical behavior of an interacting surface reaction model
J. Phys. A 26, 4197 (1993) 
Critical behavior of surfacereaction models
J. Korean Phys. Soc. 26, S345 (1993) 
The antiferromagnetic threestate Potts model on a triangular lattice
J. Korean Phys. Soc. 26, S399 (1993) 
Dynamic scaling theory of A + B → surface reaction
J. Korean Phys. Soc. 26, S406 (1993) 
Phase diagram of a random tiling quasicrystal
J. Stat. Phys. 66, 1 (1992) 
Triviality of the critical exponents of directed selfavoiding walks on Sierpinsky carpets
J. Phys. A 25, L453 (1992) 
Logarithmic singularity in the surface free energy near commensurateincommensurate transitions
J. Phys. A 24, 257 (1991) 
Interface growth with competing surface currents
J. Phys. A 24, L1391 (1991) 
Finitesizescaling amplitudes of the incommensurate phase
Phys. Rev. Lett. 64, 1076 (1990) 
Universal finitesizescaling amplitudes on a torus for the triangular Ising lattice gas
J. Phys. A 23, 1789 (1990) 
Finitesizescaling amplitudes in a random tiling model
J. Phys. A 23, L573 (1990) 
Conformal invariance in incommensurate phases
J. Stat. Phys. 61, 51 (1990) 
Universal finitesizescaling amplitudes of interfacial free energies in Monte Carlo simulations
J. Phys. A 22, 3663 (1989) 
Exact results on the antiferromagnetic three state Potts model
Phys. Rev. Lett. 63, 1193 (1989) 
Universal finitesizescaling amplitudes of the Potts model on a torus
Phys. Rev. B 38, 565 (1988) 
Anisotropic honeycomb domain wall networks in uniaxial systems
Ann. Phys. 172, 419 (1986) 
Large q expansion of the Potts model susceptibility and magnetization in two and three dimensions
J. Korean Phys. Soc. 15, 55 (1982)
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 Quantum Universe Center, Korea Institute for Advanced Study
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