76 citations · 159 across the 7 of their papers we have counts for
7 papers
Interplay between Quantum Metric and Hybridized Collective Mode in Flat-Band Superfluids
Yi Liu, Mingyan Wang, Penghui Hu +1
We investigate collective excitations in flat-band superfluids by incorporating the coupled dynamics of pairing (phase and amplitude) and density fluctuations. We demonstrate that…
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…
Topological polarization singularities induced by the non-Hermitian Dirac points
Jun Wang, Jie Liu, Peng Hu +2
A Dirac point in the Hermitian photonic system will split into a pair of exceptional points (EPs) or even spawn a ring of EPs if non-Hermiticity is involved. Here, we present a new…
General bound states in the continuum in momentum space
Qiao Jiang, Peng Hu, Jun Wang +2
Polarization singularities including bound states in the continuum (BICs) and circularly polarized states have provided promising opportunities in the manipulation of light waves.…
Bound States in the Continuum Based on the Total Internal Reflection of Bloch Waves
Peng Hu, Chongwu Xie, Qianju Song +4
A photonic-crystal slab can support bound states in the continuum (BICs) which have infinite lifetimes but embedded into the continuous spectrum of optical modes in free space. The…
Floquet Fractional Chern Insulators and Competing Phases in Twisted Bilayer Graphene
Peng-Sheng Hu, Yi-Han Zhou, Zhao Liu
We study the many-body physics in twisted bilayer graphene coupled to periodic driving of a circularly polarized light when electron-electron interactions are taken into account. I…
Designing topological interface states in phononic crystals based on the full phase diagrams
Yan Meng, Xiaoxiao Wu, Ruo-Yang Zhang +8
The topological invariants of a periodic system can be used to define the topological phase of each band and determine the existence of topological interface states within a certai…