文献类型：期刊文献

英文题名：Bound states and chiral excitation in the effective Floquet continuum within tilted waveguide lattices

作者：Sheng, Tian-Ze[1,2];Liu, Li-Feng[1,2];Zhang, Ying[1,2];Qian, Jun[2];Li, Xiao-Lin[2];Niu, Yue-Ping[1,2,3];Gong, Shang-Qing[1,2,3,4]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Phys, Shanghai 200237, Peoples R China;[3]Shanghai Frontiers Sci Ctr Optogenet Tech Cell Met, Shanghai 200237, Peoples R China;[4]Hefei Natl Lab, Hefei 230088, Anhui, Peoples R China

年份：2025

卷号：111

期号：6

外文期刊名：PHYSICAL REVIEW A

收录：;EI(收录号：20252318556582);WOS:【SCI-EXPANDED(收录号:WOS:001509178100003)】；

基金：This work was supported by the National Natural Sci-ence Foundation of China (Grants No. 12034007 and No. 12374327) , Innovation Program for Quantum Science and Technology (Grant No. 2021ZD0300802) , Major Project of Shanghai Municipal Education Commission (Grant No. 2023ZKZD39) , and Program of Shanghai Academic Research Leader (Grant No. 21XD1400700) .

语种：英文

摘要：We investigate the dynamics of light escaping from a tilted waveguide capable of supporting chiral light excitation into a two-band Su-Schrieffer-Heeger system functioning as a continuum. In a periodic scenario that gives rise to Floquet multibands, our research reveals that the effective bands, exhibiting time-reversal symmetry breaking, host bound states in the continuum (BICs) generated through coupling interference, alongside phenomena reminiscent of spontaneous radiation. Moreover, we analyze the influence of the zero mode on the BICs and the chiral transport of the excited Bloch waves within the tilt-induced Floquet bands. Our results establish a foundational pathway for exploring BICs in systems exhibiting time-reversal symmetry breaking.