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Updated: May 29, 2026
06:53
Scanning SQUID Study of Vortex Manipulation by Local Contact
Published on: February 1, 2017
Vortex solitons in disclination quasicrystals.
Hua Zhong1, Yaroslav Kartashov2, Yongdong Li1
1Key Laboratory for Physical Electronics and Devices, Ministry of Education, School of Electronic Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China.
Summary
Stable vortex solitons with unusual properties are found in quasicrystals with topological defects. These photonic quasicrystals exhibit discrete rotational symmetry, enabling robust light beam propagation and new applications.
Area of Science:
- Condensed Matter Physics
- Photonics
- Materials Science
Background:
- Quasicrystals are aperiodic materials with long-range order, exhibiting unique excitation dynamics and localization properties.
- Photonic quasicrystals with discrete rotational symmetry (Cν) can support stable vortex light beams and solitons.
- Previous studies focused on simple Penrose tilings, limiting the investigation of rotational symmetry's impact on vortex states.
Purpose of the Study:
- To explore the effect of discrete rotational symmetry (ν) in quasicrystals on vortex light states.
- To introduce global topological defects (disclinations) into quasicrystalline structures to create new materials.
- To investigate the properties and stability of vortex solitons in these engineered quasicrystals.
Main Methods:
- Designing quasicrystalline structures with tunable discrete rotational symmetry (Cν) by introducing disclinations.
- Analyzing the linear spectrum of these modified quasicrystals to identify new vortex states.
- Numerically simulating the propagation of light beams and vortex solitons within these structures.
Main Results:
- A broad class of quasicrystals with disclinations was proposed, allowing for desired discrete rotational symmetry.
- New types of linear vortex states and stable thresholdless vortex solitons were discovered.
- Two classes of stable vortex solitons were identified, with intensity distributions mirroring the quasicrystal's symmetry.
- Low-charge vortex solitons demonstrated stability, with broader stability intervals for lower Cν symmetry.
Conclusions:
- Global topological deformation enriches the linear spectrum and localization properties of quasicrystals.
- Engineered quasicrystals with disclinations offer new possibilities for stable vortex soliton propagation.
- These findings expand the theory of localization in quasicrystals and suggest prospects for robust power/information transmission.
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