Photon-mediated electronic correlation effects in irradiated two-dimensional Dirac systems

Abstract

Periodically driven systems can host many interesting and intriguing phenomena. The irradiated two-dimensional Dirac systems, driven by circularly polarized light, are the most attractive thanks to intuitive physical view of the absorption and emission of photon near Dirac cones. Here, we assume that the light is incident in the two-dimensional plane, and choose to treat the light-driven Dirac systems by making a unitary transformation to capture the photon-mediated electronic correlation effects, instead of using usual Floquet theory. In this approach, the electron-photon interaction terms can be cancelled out and the resultant effective electron-electron interactions can produce important effects. These effective interactions will produce a topological band structure in the case of 2D Fermion system with one Dirac cone, and can lift the energy degeneracy of the Dirac cones for graphene. This method can be applicable to similar light-driven Dirac systems to investigate photon-mediated electronic effects in them.

5 pages, 4 figures

References in corpus (16)

• Photovoltaic Hall effect in graphene
• Topological characterization of periodically-driven quantum systems
• Periodically-driven quantum systems: Effective Hamiltonians and engineered gauge fields
• Electronic and optical properties of strained graphene and other strained 2D materials: a review
• Direct optical detection of Weyl fermion chirality in a topological semimetal
• Light-field driven currents in graphene
• Deterministic Quantum State Transfer and Generation of Remote Entanglement using Microwave Photons
• Out of equilibrium electrons and the Hall conductance of a Floquet topological insulator
• Effective Theory of Floquet Topological Transitions
• Z2-topology in nonsymmorphic crystalline insulators: Mobius twist in surface states
• Microwave photon-mediated interactions between semiconductor qubits
• Intrinsic ferromagnetism and quantum anomalous Hall effect in CoBr2 monolayer
• Floquet edge states in a harmonically driven integer quantum Hall system
• Floquet spectrum and driven conductance in Dirac materials: Effects of Landau-Zener-Stückelberg-Majorana interferometry
• Quantum Floquet anomalous Hall states and quantized ratchet effect in one-dimensional dimer chain driven by two ac electric fields
• The effects of Moire lattice on the electronic properties of graphene