تقرير
Massive Klein Tunneling in Topological Photonic Crystals
| العنوان: | Massive Klein Tunneling in Topological Photonic Crystals |
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| المؤلفون: | Nakatsugawa, Keiji, Hu, Xiao |
| سنة النشر: | 2023 |
| المجموعة: | Condensed Matter Physics (Other) |
| مصطلحات موضوعية: | Condensed Matter - Mesoscale and Nanoscale Physics, Physics - Optics |
| الوصف: | Klein's paradox refers to the transmission of a relativistic particle through a high potential barrier. Although it has a simple resolution in terms of particle-to-antiparticle tunneling (Klein tunneling), debates on its physical meaning seem lasting partially due to the lack of direct experimental verification. In this article, we point out that honeycomb-type photonic crystals (PhCs) provide an ideal platform to investigate the nature of Klein tunneling, where the effective Dirac mass can be tuned in a relatively easy way from a positive value (trivial PhC) to a negative value (topological PhC) via a zero-mass case (PhC graphene). Especially, we show that analysis of the transmission between domains with opposite Dirac masses -- a case hardly be treated within the scheme available so far -- sheds new light on the understanding of the Klein tunneling. Comment: 18 pages, 6 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1364/optcon.515300 |
| URL الوصول: | http://arxiv.org/abs/2312.16207 |
| رقم الأكسشن: | edsarx.2312.16207 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1364/optcon.515300 |
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