Abstract: The Majorana lattice gauge theory purely composed of Majorana fermions on square lattice is studied throughly. The ground state is obtained exactly and exhibits the coexistence of symmetry breaking and topological order. The Z_2 symmetry breaking of matter fields leads to the intertwined antiferromagnetic spin order and η-pairing order. The topological order is reflected in the Z_2 quantum spin liquid ground state of gauge fields. The Majorana lattice gauge theory, alternatively can be viewed as interacting Majorana fermion model, is possibly realized on a Majorana-zero-mode lattice. CV: Jian-Jian Miao, Research Assistant Professor in The Chinese University of Hong Kong. Miao got Bachelor degree in 2012 and PHD degree in 2017 both from Zhejiang University (ZJU). During 2017-2019, Miao joined as a Postdoctoral Fellow in the Kavli Institute for Theoretical Sciences (Kavli ITS) at the University of Chinese Academy of Sciences (UCAS). Since 2019, Miao has served as a Research Assistant Professor in The Chinese University of Hong Kong (CUHK) and currently a Visiting Scholar in The University of Hong Kong (HKU). Miao’s research interest has been focused on Theoretical Condensed Matter Physics, mainly about Superconductors and Strongly Correlated Systems. Miao has published more than 10 peer-reviewed journals, including Physical Review Letters，National Science Review and so on.

简历：苗舰舰，香港中文大学研究助理教授。2012年本科毕业于浙江大学, 2017年在浙江大学获得博士学位，2017-2019年在中国科学院大学卡弗里(Kavli)理论科学研究所从事博士后研究，2019年起在香港中文大学担任研究助理教授职位。长期从事非常规超导微观机理和强关联体系严格可解模型的解析理论研究，包括Majorana对偶、拓扑量子相变、量子自旋液体、拓扑序等方向，在包括Physical Review Letters，National Science Review等在内的国际一流期刊发表论文十余篇。