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복잡계 이론물리 연구단
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Bloch theorem dictated wave chaos in microcavity crystals

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Title
Bloch theorem dictated wave chaos in microcavity crystals
Author(s)
Chang-Hwan Yi; Hee Chul Park; Moon Jip Park
Publication Date
2023-05
Journal
Light: Science and Applications, v.12, no.1
Publisher
Springer Nature
Abstract
Universality class of wave chaos emerges in many areas of science, such as molecular dynamics, optics, and network theory. In this work, we generalize the wave chaos theory to cavity lattice systems by discovering the intrinsic coupling of the crystal momentum to the internal cavity dynamics. The cavity-momentum locking substitutes the role of the deformed boundary shape in the ordinary single microcavity problem, providing a new platform for the in situ study of microcavity light dynamics. The transmutation of wave chaos in periodic lattices leads to a phase space reconfiguration that induces a dynamical localization transition. The degenerate scar-mode spinors hybridize and non-trivially localize around regular islands in phase space. In addition, we find that the momentum coupling becomes maximal at the Brillouin zone boundary, so the intercavity chaotic modes coupling and wave confinement are significantly altered. Our work pioneers the study of intertwining wave chaos in periodic systems and provide useful applications in light dynamics control. © 2023, The Author(s).
URI
https://pr.ibs.re.kr/handle/8788114/13442
DOI
10.1038/s41377-023-01156-9
ISSN
2095-5545
Appears in Collections:
Center for Theoretical Physics of Complex Systems(복잡계 이론물리 연구단) > 1. Journal Papers (저널논문)
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