30 citations · 62 across the 11 of their papers we have counts for
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Novel theoretical approach in photoemission spectroscopy: application to isotope effect and boron-doped diamond
Jifeng Yu, Kai Ji, Keiichiro Nasu
A new path-integral theory is developed to calculate the photoemission spectra (PES) of correlated many-electron systems. The application to the study on Bi2Sr2CaCu2O8 (Bi2212) and…
Theoretical study on isotopic shift in angle-resolved photoemission spectra of Bi2Sr2CaCu2O8
Kai Ji, Keiichiro Nasu
We develop a path-integral theory to study the angle-resolved photoemission spectra (ARPES) of high-T_c superconductors based on a two-dimensional model for the CuO2 conduction pla…
Isotopic shift in angle-resolved photoemission spectra of Bi2Sr2CaCu2O8 due to quadratic electron-phonon coupling
Kai Ji, Keiichiro Nasu
In connection with the experiment on oxygen isotope effect of Bi2Sr2CaCu2O8 with the angle-resolved photoemission spectroscopy (ARPES), we theoretically study the isotope-induced b…
Theory of Photoinduced Phase Transitions
Kenji Yonemitsu, Keiichiro Nasu
Theories of photoinduced phase transitions have developed along with the progress in experimental studies, especially concerning their nonlinear characters and transition dynamics.…
Dynamical study on polaron formation in a metal/polymer/metal structure
C. Q. Wu, Y. Qiu, K. Nasu
By considering a metal/polymer/metal structure within a tight-binding one-dimensional model, we have investigated the polaron formation in the presence of an electric field. When a…