Photoinduced correlated electron dynamics in a two-leg ladder Hubbard system

  title={Photoinduced correlated electron dynamics in a two-leg ladder Hubbard system},
  author={Hiroshi Hashimoto and Sumio Ishihara},
  journal={Physical Review B},
Photoinduced carrier dynamics in a correlated electron system on a coupled two-leg ladder lattice are studied. The two-leg ladder Hubbard model is analyzed by utilizing the exact diagonalization method based on the Lanczos algorithm in finite size clusters. In order to reveal the transient carrier dynamics after photoirradiation, we calculate the low-energy components of the hole kinetic energy, the pair-field correlation function, the optical conductivity spectra and others. It is shown that… 
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