Photoinduced Phase Transition in Two-Band model on Penrose Tiling

Abstract

We study the effects of the photo irradiation on the band insulating state in the two-band Hubbard model on the Penrose tiling. Examining the time- and site-dependent physical quantities, we find that the excitionic state is dynamically induced with site-dependent order parameters. It is also clarified that, in the excitonic state induced by the photo irradiation, local oscillatory behavior appears in the electron number as well as in the order parameter, which should be characteristic of the quasiperiodic lattice.

4 pages, 2 figures

References in corpus (4)

• Antiferromagnetic order in the Hubbard Model on the Penrose Lattice
• Topological states in quasicrystals
• Valence Fluctuations and Electric Reconstruction in the Extended Anderson Model on the Two-Dimensional Penrose Lattice
• Local Electron Correlations in a Two-dimensional Hubbard Model on the Penrose Lattice