Discrete time crystal made of topological edge magnons

• Main Authors: Bhowmick, Dhiman, Sun, Hao, Yang, Bo, Sengupta, Pinaki
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2023
• Subjects: Science::Physics; Discrete Time; Magnons
• Online Access: https://hdl.handle.net/10356/171746
• Institution: Nanyang Technological University

We report the emergence of time-crystalline behavior in the \pi-Berry phase protected edge states of a Heisenberg ferromagnet in the presence of an external driving field. The magnon amplification due to the external field spontaneously breaks the discrete time-translational symmetry, resulting i...