7 papers
Observation of fractality-induced topology in photonic crystals
Bei Yan, Yingfeng Qi, Xiang Xi +6
Fractal topology--achieved by integrating nontrivial topology into fractal geometries with self-similarity and non-integer dimensions--has opened new avenues for exploring topologi…
Strain-Induced Tuning of Third-Harmonic Generation in Monolayer Black Phosphorene
Yan Meng, Kainan Chang, Wei Song +3
Based on the tight-binding model and the semiconductor Bloch equations, this work systematically reveals the microscopic mechanism of strain engineering in turning of third-harmoni…
Orbital Altermagnetic Photonic Crystal
Sichang Qiu, Huichang Li, Yan Meng +6
Altermagnetism features momentum-dependent spin splitting without net magnetization, extending spintronics beyond conventional ferromagnetism and antiferromagnetism. However, the p…
Testing holographic duality in hyperbolic lattices
Jingming Chen, Feiyu Chen, Linyun Yang +16
The celebrated holographic duality posits a correspondence between a quantum gravity in a bulk spacetime and a quantum field theory (QFT) defined on its lower-dimensional boundary.…
Observation of Chiral Bound States in the Continuum in Self-biased Magneto-optical Photonic Crystals
Maohua Gong, Qiutong Zhen, Yujie Tang +5
Chiral bound states in the continuum (BICs) are confined photonic modes with infinite quality factors and chiral response, offering significant potential for chiral optics. Althoug…
Spatiotemporal topological phase transitions in photonic spacetime crystals
Zebin Zhu, Bolun Huang, Siqi Xu +5
Topological phase transitions, characterized by the closing and reopening of band gaps and a concomitant change in topological invariants, have played a central role in topological…