title: Photon dressed electronic states in topological insulators: tunneling and conductance.
abstract: We have obtained analytic results for the surface states of three-dimensional topological insulators in the presence of circularly polarized light. This electron-photon interaction results in an energy gap as well as a novel energy dispersion of the dressed electron-photon states, different from both graphene and the standard two-dimensional electron gas (2DEG). Additionally, we made calculations of the ballistic conductance and Klein tunneling in both two- and three-dimensional topological insulators as well as investigating how these phenomena are affected in the presence of circularly polarized light. We have found a critical energy for an incoming particle, separating two substantially different types of tunneling.
authors: Department of Physics and Astronomy, Hunter College, City University of New York, New York, NY 10065, USA. aiurov@hunter.cuny.edu
authors: Andrii
authors: A
authors: Iurov
authors: Godfrey
authors: G
authors: Gumbs
authors: Oleksiy
authors: O
authors: Roslyak
authors: Danhong
authors: D
authors: Huang