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cond-mat.str-el2005★ 38 cited
Exact diagonalization study of optical conductivity in two-dimensional Hubbard model
T. Tohyama, Y. Inoue, K. Tsutsui +1
The optical conductivity σ(ω) in the two-dimensional Hubbard model is examined by applying the exact diagonalization technique to small square clusters with periodic boundary condi…
cond-mat.str-el2005
Theoretical study of angle-resolved two-photon photoemission in two-dimensional insulating cuprates
H. Onodera, T. Tohyama, K. Tsutsui +1
We propose angle-resolved two-photon photoemission spectroscopy (AR-2PPES) as a technique to detect the location of the bottom of the upper Hubbard band (UHB) in two-dimensional in…