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Title: Introduction to generalized global symmetries and their application †Speaker: Yoshimasa Hidaka †Ordinary symmetries are symmetries acting on point particles. The concept can be generalized to symmetries acting on extended objects, such as vortices and domain walls. Such symmetres are called higher form symmetries. In this talk, I review the concept of higher form symmetries. As an example of the application, I discuss spontaneous breaking of higher form symmetries in a nonrelativistic system and show the counting rule of the Nambu-Goldstone modes. |