Theory of photon-assisted tunneling through quantum dot

摘要: Abstract Based on the two-channel Anderson Hamiltonian with non-equilibrium electron distribution under an external electric field, we develop theory of stationary photon-assisted tunneling current via strongly correlated energy levels in a quantum dot. The (Mahanthappa–Baksi–Keldysh) Green function formalism is employed to study Kondo effect and Coulomb blockade phenomenon presence field. interaction treated within second order perturbation self-energy. change dot due emission absorption photons taken into account found play very important role for suppression effect. We show that opening new channel through photon side band accounts staircase current.