汇报标题 (Title)：Holographic superconductor: order without particle（全息超导：无粒子图像的有序结构）
汇报人 (Speaker)：SangJin Sin教授（韩国汉阳大学）
汇报功夫 (Time)：2023年12月22日(周五) 13:00-14:30
汇报地址 (Place)：校本部 FJ104
约请人 (Inviter)：葛先辉 教授
主办部门：理学院物理系
提要 (Abstract)：
I will describe the symmetry breaking near the quantum critical point, where particle nature are gone due to the strong interaction. The holographic superconductor will be used to demonstrate the typical mechanism of such symmetry breaking. Due to the universality associated with the scale invariance of the underlying QCP, only broken symmetry types are important. According to which symmetry is broken, the fermion Green functions have characteristic features and singularity type. We classify them and get some analytic expressions in the probe limit.
