作者:Kremnyov, Stanislav; Lebedeva, Tatiana; Genikhovich, Grigory; Hejnol, Andreas
作者单位:Friedrich Schiller University of Jena; University of Vienna
摘要:In an iconic experiment in 1924, Hilde Mangold and Hans Spemann established that the dorsal blastopore lip of amphibian embryos functions as an organizer and induces a secondary body axis when transplanted into a host embryo1. This discovery demonstrated that specific embryonic regions can regulate embryonic patterning and lead to the establishment of an entire body axis. Subsequent studies have revealed that cnidarians, the sister group to Bilateria, also possess a blastoporal embryonic organ...
作者:Li, Zexu; Wang, Wenxuan; Wang, Fajie; Zhang, Zaizhe; Yang, Qiu; Watanabe, Kenji; Taniguchi, Takashi; Xie, X. C.; Wang, Jie; Liu, Kaihui; Song, Zhida; Lu, Xiaobo
作者单位:Peking University; Peking University; National Institute for Materials Science; National Institute for Materials Science; Fudan University; Hefei National Laboratory; Tsinghua University; Peking University; Collaborative Innovation Center of Quantum Matter; Peking University; Peking University; Peking University
摘要:The realization of fractional Chern insulators opens the possibility of exploring fractionally charged excitations1, 2, 3, 4, 5, 6-7 and anyonic statistics8, 9, 10-11 in the absence of a magnetic field. A central question is whether lattice-based systems can give rise to radically new states, distinct from those observed in traditional fractional quantum Hall systems12, 13, 14, 15, 16, 17, 18, 19-20. Here we investigate a type of moir & eacute; flat-band system composed of Bernal bilayer graph...