Publications
64. Pseudo-Hermitian Topology of Multiband Non-Hermitian Systems
Jung-Wan Ryu, Jae-Ho Han, Chang-Hwan Yi, Hee Chul Park, and Moon Jip Park
63. Spontaneous emission decay and excitation in photonic temporal crystals
Jagang Park, Kyungmin Lee, Ruo-Yang Zhang, Hee-Chul Park, Jung-Wan Ryu, Gil Young Cho, Min Yeul Lee, Zhaoqing Zhang, Namkyoo Park, Wonju Jeon, Jonghwa Shin, C. T. Chan, Bumki Min
62. Exceptional Classifications of Non-Hermitian Systems
Jung-Wan Ryu, Jae-Ho Han, Chang-Hwan Yi, Moon Jip Park, and Hee Chul Park
Communications Physics 7, 109 (2024); arXiv:2306.06967
61. Realization of non-Hermitian Hopf bundle matter
Yung Kim, Hee Chul Park, Minwook Kyung, Kyungmin Lee, Jung-Wan Ryu, Oubo You, Shuang Zhang, Bumki Min, and Moon Jip Park
Communications Physics 6, 273 (2023); arXiv:2303.13721
60. Symmetry-protected flatband condition for Hamiltonians with local symmetry
Jung-Wan Ryu, Alexei Andreanov, Hee Chul Park, Jae-Ho Han
arXiv:2308.14997
59. Dynamics in non-Hermitian systems with nonreciprocal coupling
Jung-Wan Ryu
Phys. Rev. A 108, 052205 (2023); arXiv:2307.12021
58. Revealing non-Hermitian band structure of photonic Floquet media
Jagang Park, Hyukjoon Cho, Seojoo Lee, Kyungmin Lee, Kanghee Lee, Hee Chul Park, Jung-Wan Ryu, Namkyoo Park, Sanggeun Jeon, Bumki Min
Science Advances 8 (40), eabo6220 (2022); arXiv:2112.01313
57. Classification of multiple arbitrary-order non-Hermitian singularities
Jung-Wan Ryu, Jae-Ho Han, Chang-Hwan Yi
Phys. Rev. A 106, 012218 (2022); arXiv:2112.02547
56. Mesoscopic Möbius ladder lattices as non-Hermitian model systems
Jung-Wan Ryu and Martina Hentschel
Journal of Physics A: Mathematical and Theoretical, 55 224008 (2022); arXiv:2205.01641
55. Impact of non-Hermitian Mode interaction on Inter-cavity Light transfer
Hyeon-Hye Yu, Sunjae Gwak, Jinhyeok Ryu, Ji-Hwan Kim, Jung-Wan Ryu, Chil-Min Kim, Chang-Hwan Yi
Photon. Res. 10(5), 1232-1237 (2022); arXiv:2105.10936
54. Double layered transformation cavities: Crossover between local and global transformations
Jung-Wan Ryu
Phys. Rev. A 105, 033523 (2022); arXiv:2112.08661
53. Topological edge states in bowtie ladders with different cutting edges
Jung-Wan Ryu, Sungjong Woo, Nojoon Myoung, and Hee Chul Park
Physica E: Low-dimensional Systems and Nanostructures 137, 114941 (2022); arXiv:2012.00270
52. Stochastic thermodynamics of inertial-like Stuart–Landau dimer
Jung-Wan Ryu, Alexandre Lazarescu, Rahul Marathe, Juzar Thingna
New Journal of Physics 23, 105005 (2021); arXiv:2107.00208
51. Salient role of the non-Hermitian coupling for optimizing conditions in multiple maximizations of inter-cavity light transfer
Hyeon-Hye Yu, Sunjae Gwak, Hyundong Kim, Jung-Wan Ryu, Chil-Min Kim, Chang-Hwan Yi
Optics Express 29, 19998 (2021)
50. Transformation cavities with a narrow refractive index profile
Jung-Wan Ryu and Jinhang Cho
Opt. Lett. 46, 1900 (2021); arXiv:2102.09516
49. Non-orientability induced PT phase transition in Moebius ladder lattices
Jung-Wan Ryu, Nojoon Myoung, Martina Hentschel, and Hee Chul Park
Phys. Rev. A 103, 042207 (2021); arXiv:2001.10221
48. Whispering gallery modes in triple microdisks of triangular configurations
Jung-Wan Ryu and Sunghwan Rim
J. Opt. Soc. Am. B 37, 2382-2387 (2020); arXiv:1910.13660
47. Emergent localized states at the interface of a twofold PT-symmetric lattice
Jung-Wan Ryu, Nojoon Myoung, Ara Go, Sungjong Woo, Sang-Jun Choi, and Hee Chul Park
Phys. Rev. Research 2, 033149 (2020); arXiv:1904.00444
46. Boundary integral equation method for resonances in gradient index cavities designed by conformal transformation optics
Jung-Wan Ryu, Jinhang Cho, Soo-Young Lee, Yushin Kim, Sang-Jun Park, Sunghwan Rim, Muhan Choi, and Inbo Kim
Scientific Reports 9, 19684 (2019); arXiv:1909.11582
45. Oscillation death in coupled counter-rotating identical nonlinear oscillators
Jung-Wan Ryu, Woo-Sik Son, and Dong-Uk Hwang
Phys. Rev. E 100, 022209 (2019); arXiv:1904.07450
44. Splitting of conductance resonance through a magnetic quantum dot in graphene
Nojoon Myoung, Jung-Wan Ryu, Hee Chul Park, Seung Joo Lee, and Sungjong Woo
Phys. Rev. B 100, 045427 (2019); arXiv:1811.00750
43. Optimization of conformal Whispering Gallery Modes in limacon-shaped transformation cavities
Jung-Wan Ryu, Jinhang Cho, Inbo Kim, and Muhan Choi
Scientific Reports 9, 8506 (2019); arXiv:1901.03083
42. Statistical properties of chaotic microcavities in small and large opening cases
Jung-Wan Ryu and Sang Wook Kim
Chaos 29, 043123 (2019); arXiv:1305.6698
41. Flat-band localization and self-collimation of light in photonic crystals
Nojoon Myoung, Hee Chul Park, A Ramachandran, E Lidorikis, and Jung-Wan Ryu
Scientific Reports 9, 2862 (2019); arXiv:1801.08671
40. Husimi functions at gradient index cavities designed by conformal transformation optics
Inbo Kim, Jinhang Cho, Yushin Kim, Bumki Min, Jung-Wan Ryu, Sunghwan Rim, and Muhan Choi
Optics Express 26, 6851 (2018).
39. Quantum Transport and Non-Hermiticity on Flat-Band Lattices
Hee Chul Park, Jung-Wan Ryu, and Nojoon Myoung
J Low Temp Phys 191, 49 (2018).
38. Antiresonance induced by symmetry-broken contacts in quasi-one-dimensional lattices
Jung-Wan Ryu, Nojoon Myoung, and Hee Chul Park
Phys. Rev. B 96, 125421 (2017); arXiv:1709.00130
37. Amplitude death in a ring of nonidentical nonlinear oscillators with unidirectional coupling
Jung-Wan Ryu, Jong-Ho Kim, Woo-Sik Son, and Dong-Uk Hwang
Chaos 27, 083119 (2017); arXiv:1708.04736
36. Reconfiguration of quantum states in PT-symmetric quasi-one dimensional lattices
Jung-Wan Ryu, Nojoon Myoung, and Hee Chul Park
Scientific Reports 7, 8746 (2017); arXiv:1708.00131
35. Designing whispering gallery modes via transformation optics
Yushin Kim*, Soo-Young Lee*, Jung-Wan Ryu*, Inbo Kim, Jae-Hyung Han, Heung-Sik Tae, Muhan Choi, and Bumki Min
Nature Photonics 10, 647 (2016). (*Equally contributed)
34. Localization in chaotic systems with a single-channel opening
D. Lippolis, J.-W. Ryu, and S. W. Kim
Phys. Rev. E 92, 012921 (2015).
33. Rotationally reconfigurable metamaterials based on moiré phenomenon
J.-H. Han, I. Kim, J.-W. Ryu, J. Kim, J.-H. Cho, G.-S. Yim, H.-S. Park, B. Min, and M. Choi
Optics Express 23, 17443 (2015).
32. Exceptional points in coupled dissipative dynamical systems
J.-W. Ryu, W.-S. Son, D.-U. Hwang, S.-Y. Lee, and S. W. Kim
Phys. Rev. E 91, 052910 (2015).
31. Abnormal high-Q modes of coupled stadium-shaped microcavities
J.-W. Ryu, S.-Y. Lee, I. Kim, M. Choi, M. Hentschel, and S. W. Kim
Opt. Lett. 39, 4196 (2014).
30. Phase-space analysis of lasing modes in a chaotic microcavity
T.-Y. Kwon, S.-Y. Lee, J.-W. Ryu, and M. Hentschel
Phys. Rev. A 88, 023855 (2013).
29. On-manifold localization in open quantum maps
D. Lippolis, J.-W. Ryu, S.-Y. Lee, and S. W. Kim
Phys. Rev. E 86, 066213 (2012).
28. Terahertz beat frequency generation from two-mode lasing operation of coupled microdisk laser
J.-W. Ryu, J. Cho, C.-M. Kim, S. Shinohara, and S. W. Kim
Opt. Lett. 37, 3210 (2012).
27. Geometric phase around multiple exceptional points
S.-Y. Lee, J.-W. Ryu, S. W. Kim, and Y. C. Chung
Phys. Rev. A 85, 064103 (2012).
26. Quasiattractors in coupled maps and coupled dielectric cavities
J.-W. Ryu, M. Hentschel, and S. W. Kim
Phys. Rev. E 85, 056213 (2012).
25. Analysis of multiple exceptional points related to three interacting eigenmodes in a non-Hermitian Hamiltonian
J.-W. Ryu, S.-Y. Lee, and S. W. Kim
Phys. Rev. A 85, 042101 (2012).
24. Nonorthogonal pairs of copropagating optical modes in deformed microdisk cavities
J. Wiersig, A. Eberspaecher, J.-B. Shim, J.-W. Ryu, S. Shinohara, M. Hentschel, and H. Schomerus
Phys. Rev. A 84, 023845 (2011).
23. Designing coupled microcavity lasers for high-Q modes with unidirectional light emission
J.-W. Ryu and M. Hentschel
Opt. Lett. 36, 1116 (2011).
22. Quasiscarred modes and their branching behavior at an exceptional point
J.-W. Ryu and S.-Y. Lee
Phys. Rev. E 83, 015203(R) (2011).
21. Ray model and ray-wave correspondence in coupled optical microdisks
J.-W. Ryu and M. Hentschel
Phys. Rev. A 82, 033824 (2010).
20. Oscillation Quenching in Coupled Different Oscillators
J.-W. Ryu, D.-S. Lee, Y.-J. Park, and C.-M. Kim
J. Korean. Phys. Soc. 55, 395 (2009).
19. Coupled nonidentical microdisks: Avoided crossing of energy levels and unidirectional far-field emission
J.-W. Ryu, S.-Y. Lee, and S.W. Kim
Phys. Rev. A 79, 053858 (2009).
18. Quantum Localization in Open Chaotic Systems
J.-W. Ryu, G. Hur, and S.W. Kim
Phys. Rev. E 78, 037201 (2008).
17. Divergent Petermann factor of interacting resonances in a stadium-shaped microcavity
S.-Y. Lee, J.-W. Ryu, J.-B. Shim, S.-B. Lee, S.W. Kim, and K. An.
Phys. Rev. A 78, 015805 (2008).
16. Transport Control in a Deterministic Ratchet System
W.-S. Son, J.-W. Ryu, D.-U. Hwang, S.-Y. Lee, Y.-J. Park, and C.-M. Kim
Phys. Rev. E 77, 066213 (2008).
15. Ray and Wave Dynamical Properties of a Spiral-shaped Dielectric Microcavity
S.-Y. Lee, S. Rim, J.-W. Ryu, T.-Y. Kwon, M. Choi, and C.-M. Kim
J. Phys. A: Math. Theor. 41, 275102 (2008).
14. Resonances in a Circular Dielectric Cavity
J.-W. Ryu, S. Rim, Y.-J. Park, C.-M. Kim, and S.-Y. Lee
Phys. Lett. A 372, 3531 (2008).
13. Characteristics of Lasing Modes in a Spiral-shaped Microcavity
C.-M. Kim, S.-Y. Lee, J.-W. Ryu, T.-Y. Kwon, S. Rim, J. Lee, and J. Cho
Prog. Theor. Phys. Supp. 166, 112 (2007).
12. Control of a Deterministic Inertia Ratchet System via Extended Delay Feedback
W.-S. Son, Y.-J. Park, J.-W. Ryu, D.-U. Hwang, and C.-M. Kim
J. Korean. Phys. Soc. 50, 243 (2007).
11. Directional Interacting Whispering Gallery Modes in Coupled Dielectric Microdisks
J.-W. Ryu, S.-Y. Lee, C.-M. Kim, and Y.-J. Park
Phys. Rev. A 74, 013804 (2006).
10. Survival Probability Time Distribution in Dielectric Cavities
J.-W. Ryu, S.-Y. Lee, C.-M. Kim, and Y.-J. Park
Phys. Rev. E 73, 036207 (2006).
9. Scarred Resonances and Steady Probability Distribution in a Chaotic Microcavity
S.-Y. Lee, J.-W. Ryu, T.-Y. Kwon, S. Rim, and C.-M. Kim
Phys. Rev. A 72, 061801(R) (2005).
8. Excitable Behavior of an Operational Amplifier
C.-M. Kim, G.-S. Yim, J.-W. Ryu, Y.-J. Park, and D.-U. Hwang
Europhysics Letters, 71, 723 (2005).
7. Stabilization of a Chaotic Laser and Quenching
D.-S. Lee, J.-W. Ryu, Y.-J. Park, W.-H. Kye, M. S. Kurdoglyan, and C.-M. Kim
Appl. Phys. Lett. 86, 181104 (2005).
6. Quasiscarred Resonances in a Spiral-Shaped Microcavity
S.-Y. Lee, S. Rim, J.-W. Ryu, T.-Y. Kwon, M. Choi, and C.-M. Kim
Phys. Rev. Lett. 93, 164102 (2004).
5. Effects of Time-delayed Feedback on Chaotic Oscillators
J.-W. Ryu, W.-H. Kye, S.-Y. Lee, M.-W. Kim, M. Choi, S. Rim, Y.-J. Park, and C.-M. Kim
Phys. Rev. E 70, 036220 (2004).
4. Chaotic Behaviors of Operational Amplifiers
G.-S. Yim, J.-W. Ryu, Y.-J. Park, S. Rim, S.-Y. Lee, W.-H. Kye, and C.-M. Kim
Phys. Rev. E 69, 045201 (2004).
3. Anti-synchronization of Chaotic Oscillators
C.-M. Kim, S. Rim, W.-H. Kye, J.-W. Ryu, and Y.-J. Park
Phys. Lett. A 320, 39 (2003).
2. Experimental Observation of Characteristic Relations of Type-III Intermittency in the Presence of Noise in a Simple Electronic Circuit
W.-H. Kye, S. Rim, C.-M. Kim, J.-H. Lee, J.-W. Ryu, B.-S. Yeom, and Y.-J. Park
Phys. Rev. E 68, 036203 (2003).
1. Characteristic Relations of Type-III Intermittency in an Electronic Circuit
C.-M. Kim, G.-S. Yim, J.-W. Ryu, and Y.-J. Park
Phys. Rev. Lett. 80, 5317 (1998).