Zobrazeno 1 - 10
of 4 483
pro vyhledávání: '"Liu, Gui"'
Autor:
Banerjee, Rimi, Mandal, Subhaskar, Terh, Yun Yong, Lin, Shuxin, Liu, Gui-Geng, Zhang, Baile, Chong, Y. D.
We show that a non-Hermitian lattice with a disclination can host topological disclination states that are induced by on-site gain and loss. The disclination states are inherently non-Hermitian as they do not exist in the limit of zero gain/loss. The
Externí odkaz:
http://arxiv.org/abs/2406.03455
Autor:
Mandal, Subhaskar, Wang, Ziyao, Banerjee, Rimi, Teo, Hau Tian, Zhou, Peiheng, Xi, Xiang, Gao, Zhen, Liu, Gui-Geng, Zhang, Baile
Photonic Chern insulators can be implemented in gyromagnetic photonic crystals with broken time-reversal (TR) symmetry. They exhibit gapless chiral edge states (CESs), enabling unidirectional propagation and demonstrating exceptional resilience to lo
Externí odkaz:
http://arxiv.org/abs/2405.19267
Autor:
Wang, Ziyao, Meng, Yan, Yan, Bei, Zhao, Dong, Yang, Linyun, Chen, Jing-Ming, Cheng, Min-Qi, Xiao, Tao, Shum, Perry Ping, Liu, Gui-Geng, Yang, Yihao, Chen, Hongsheng, Xi, Xiang, Zhu, Zhen-Xiao, Xie, Biye, Gao, Zhen
The discovery of photonic higher-order topological insulators (HOTIs) has significantly expanded our understanding of band topology and provided unprecedented lower-dimensional topological boundary states for robust photonic devices. However, due to
Externí odkaz:
http://arxiv.org/abs/2404.05649
We investigate the properties of mobility edge in an Aubry-Andr\'e-Harper model with non-reciprocal long-range hopping. The results reveal that there can be a new type of mobility edge featuring both strength-dependent and scale-free properties. By c
Externí odkaz:
http://arxiv.org/abs/2403.16739
Autor:
Wang, Yang, Cui, Chaoxi, Zhang, Run-Wu, Wang, Xiaotian, Yu, Zhi-Ming, Liu, Gui-Bin, Yao, Yugui
A real Chern insulator (RCI) featuring a real Chern number and a second-order boundary mode appears in a two-dimensional (2D) system with the space-time inversion symmetry (PT ). Here, we propose a kind of RCI: mirror real Chern insulator (MRCI) whic
Externí odkaz:
http://arxiv.org/abs/2403.01145
The Friedrich-Wintgen bound state in the continuum (FW BIC) provides a unique approach for achieving high quality factor (Q-factor) resonance, which has attracted wide attention and promoted the development of various applications. However, the FW BI
Externí odkaz:
http://arxiv.org/abs/2401.10630
Many applications involve the phenomenon of a material absorbing electromagnetic radiation. By exploiting wave interference, the efficiency of absorption can be significantly enhanced. Here, we propose Friedrich-Wintgen bound states in the continuum
Externí odkaz:
http://arxiv.org/abs/2312.11999
Autor:
Shcherbakov, Dmitry, Voigt, Greyson, Memaran, Shahriar, Liu, Gui-Bin, Wang, Qiyue, Watanabe, Kenji, Taniguchi, Takashi, Smirnov, Dmitry, Balicas, Luis, Zhang, Fan, Lau, Chun Ning
A two-dimensional (2D) quantum electron system is characterized by the quantized energy levels, or subbands, in the out-of-plane direction. Populating higher subbands and controlling the inter-subband transitions have wide technological applications
Externí odkaz:
http://arxiv.org/abs/2312.03228
Autor:
Liu, Gui-Geng, Mandal, Subhaskar, Zhou, Peiheng, Xi, Xiang, Banerjee, Rimi, Hu, Yuan-Hang, Wei, Minggui, Wang, Maoren, Wang, Qiang, Gao, Zhen, Chen, Hongsheng, Yang, Yihao, Chong, Yidong, Zhang, Baile
Quantum Hall systems host chiral edge states extending along the one-dimensional boundary of any two-dimensional sample. In solid state materials, the edge states serve as perfectly robust transport channels that produce a quantised Hall conductance;
Externí odkaz:
http://arxiv.org/abs/2305.13139
Autor:
Zhu, Zhenxiao, Yang, Linyun, Wu, Jien, Meng, Yan, Xi, Xiang, Yan, Bei, Chen, Jingming, Lu, Jiuyang, Huang, Xueqin, Deng, Weiyin, Shang, Ce, Shum, Perry Ping, Yang, Yihao, Chen, Hongsheng, Liu, Gui-Geng, Liu, Zhengyou, Gao, Zhen
The Bloch band theory and Brillouin zone (BZ) that characterize wave behaviors in periodic mediums are two cornerstones of contemporary physics ranging from condensed matter to topological physics. Recent theoretical breakthrough revealed that, under
Externí odkaz:
http://arxiv.org/abs/2305.08450