97 citations · 710 across the 16 of their papers we have counts for
16 papers
Demonstrating Quantum Computation for Quasiparticle Band Structures
Takahiro Ohgoe, Hokuto Iwakiri, Masaya Kohda +4
Understanding and predicting the properties of solid-state materials from first-principles has been a great challenge for decades. Owing to the recent advances in quantum technolog…
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…
mVMC - Open-source software for many-variable variational Monte Carlo method
Takahiro Misawa, Satoshi Morita, Kazuyoshi Yoshimi +6
mVMC (many-variable Variational Monte Carlo) is an open-source software based on the variational Monte Carlo method applicable for a wide range of Hamiltonians for interacting ferm…
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…
Competition among Superconducting, Antiferromagnetic, and Charge Orders with Intervention by Phase Separation in the 2D Holstein-Hubbard Model
Takahiro Ohgoe, Masatoshi Imada
Using a variational Monte Carlo method, we study competitions of strong electron-electron and electron-phonon interactions in the ground state of Holstein-Hubbard model on a square…
Time-dependent many-variable variational Monte Carlo method for nonequilibrium strongly correlated electron systems
Kota Ido, Takahiro Ohgoe, Masatoshi Imada
We develop a time-dependent variational Monte Carlo (t-VMC) method for quantum dynamics of strongly correlated electrons. The t-VMC method has been recently applied to bosonic syst…
Variational Monte Carlo Method for Electron-Phonon Coupled Systems
Takahiro Ohgoe, Masatoshi Imada
We develop a variational Monte Carlo (VMC) method for electron-phonon coupled systems. The VMC method has been extensively used for investigating strongly correlated electrons over…
Contact and Momentum Distribution of the Unitary Fermi Gas
R. Rossi, T. Ohgoe, E. Kozik +4
A key quantity in strongly-interacting resonant Fermi gases is the contact , which characterizes numerous properties such as the momentum distribution at large momenta…
Ground-State Phase Diagram of the Two-Dimensional Extended Bose-Hubbard Model
Takahiro Ohgoe, Takafumi Suzuki, Naoki Kawashima
We investigate the ground-state phase diagram of the soft-core Bose-Hubbard model with the nearest-neighbor repulsion on a square lattice by using an unbiased quantum Monte Carlo m…
Commensurate Supersolid of Three-Dimensional Lattice Bosons
Takahiro Ohgoe, Takafumi Suzuki, Naoki Kawashima
Using an unbiased quantum Monte Carlo method, we obtain convincing evidence of the existence of a checkerboard supersolid at a {\it commensurate} filling factor 1/2 (commensurate s…
Quantum phases of hard-core bosons on 2D lattices with anisotropic dipole-dipole interaction
Takahiro Ohgoe, Takafumi Suzuki, Naoki Kawashima
By using an unbiased quantum Monte Carlo method, we investigate the hard-core Bose-Hubbard model on a square lattice with anisotropic dipole-dipole interaction. To study the effect…
Novel Mechanism of Supersolid of Ultracold Polar Molecules in Optical Lattices
Takahiro Ohgoe, Takahumi Suzuki, Naoki Kawashima
We study the checkerboard supersolid of the hard-core Bose-Hubbard model with the dipole-dipole interaction. This supersolid is different from all other supersolids found in lattic…
Quantum Monte Carlo method for pairing phenomena: Super-counter-fluid of two-species Bose gases in optical lattices
Takahiro Ohgoe, Naoki Kawashima
We study the super-counter-fluid(SCF) states in the two-component hardcore Bose-Hubbard model on the square lattice, using the quantum Monte Carlo method based on the worm(directed…