"Quantum theory for density and current response in superconductors and" by Jie Tian
In this thesis, we will study three different systems in current interest: (1) the superconductor with strong electron-photon coupling, (2) graphene-topological insulator heterostructure and its dynamical polarization, (3) time crystal. The electron density and current response in these systems have been investigated.
Source: uow.edu.au