1. Chiral magnonics 2. Superconducting magnonics 3. Non-Hermitian topological magnonics

1. Many-body spin dynamics in semiconductor, graphene, and cold atoms. 2. Various spin phenomena such as spin Hall, spin pumping and Seebeck effects. 3. Exciton dynamics in valleytronics.

1.Topological properties. 2. Ultrafast engineering and Keldysh formalism for dynamics. a) Gauge invariant dynamic equations in superconductors. 3. Superconducting mechanism in magic-angle twisted bilayer graphene and cuprate family.