294 citations · 3.8k across the 106 of their papers we have counts for
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Reply to Comments on "Universal and Non-Universal Correction Terms of Bose Gases in Dilute Region: A Quantum Monte Carlo Study"
Akiko Masaki-Kato, Yuichi Motoyama, Naoki Kawashima
We reply to the comments on our previous paper J. Phys. Soc. Jpn. 91, 024001 (2022)
Universal and Non-Universal Correction Terms of Bose Gases in Dilute Region: a Quantum Monte Carlo Study
Akiko Masaki-Kato, Yuichi Motoyama, Naoki Kawashima
We study dilute gases of interacting bosons at zero-temperature in the region where the system is characterized only by the s-wave scattering length. We carry out quantum Monte Car…
Mott Insulator-like Bose-Einstein Condensation in a Tight-Binding System of Interacting Bosons with a Flat Band
Hosho Katsura, Naoki Kawashima, Satoshi Morita +2
We propose a new class of tight-binding systems of interacting bosons with a flat band, which are exactly solvable in the sense that one can explicitly write down the unique ground…
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…
Finite temperature study of bosons in a two dimensional optical lattice
K. W. Mahmud, E. N. Duchon, Y. Kato +3
We use quantum Monte Carlo (QMC) simulations to study the combined effects of harmonic confinement and temperature for bosons in a two dimensional optical lattice. The scale invari…
Reponse to Comment on "Direct mapping of the finite temperature phase diagram of strongly correlated quantum models"
Qi Zhou, Yasuyuki Kato, Naoki Kawashima +1
Pollet et al have questioned our claim staked in Phys. Rev. Lett. 103, 085701 (2009) that from the location of sharp features in the compressibility in the trap, it is possible to…
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…