88 citations · 184 across the 3 of their papers we have counts for
5 papers
Ab Initio Study on Superconductivity and Inhomogeneity in Hg-based Cuprate Superconductor
Takahiro Ohgoe, Motoaki Hirayama, Takahiro Misawa +3
Understanding physics of high- cuprate superconductors remains one of the important problems in materials science. Though a number of diverse theories argue about the supercon…
Effective Hamiltonian for cuprate superconductors derived from multi-scale ab initio scheme with level renormalization
Motoaki Hirayama, Takahiro Misawa, Takahiro Ohgoe +2
Three-types (three-band, two-band and one-band) of effective Hamiltonians for the HgBaCuO and three-band effective Hamiltonian for LaCuO are derived beyond the leve…
Resummation of diagrammatic series with zero convergence radius for strongly correlated fermions
Riccardo Rossi, Takahiro Ohgoe, Kris Van Houcke +1
We demonstrate that summing up series of Feynman diagrams can yield unbiased accurate results for strongly-correlated fermions even when the convergence radius vanishes. We conside…
Competition among various charge-inhomogeneous states and d-wave superconducting state in Hubbard models on square lattices
Kota Ido, Takahiro Ohgoe, Masatoshi Imada
We study competitions between charge uniform and inhomogeneous states in two-dimensional Hubbard models by using a variational Monte Carlo method. At realistic parameters for cupra…
Correlation-induced superconductivity dynamically stabilized and enhanced by laser irradiation
Kota Ido, Takahiro Ohgoe, Masatoshi Imada
Studies on out-of-equilibrium dynamics have paved a way to realize a new state of matter. Especially, superconductor-like properties above room temperatures recently suggested in c…