204 citations · 1.1k across the 40 of their papers we have counts for
40 papers
Quantum Mechanism of Piezomagnetism in Higher-Spin Altermagnets
Daisuke Yamamoto, Makoto Naka
We investigate piezomagnetism in higher-spin altermagnets with easy-plane single-ion anisotropy using a flavor-wave approach. We show that quantum fluctuations of higher-spin colle…
Thermal Ising transition in two-dimensional SU(3) Fermi lattice gases with population imbalance
Hayato Motegi, Giacomo Marmorini, Nobuo Furukawa +1
We focus on three-component SU(3) Fermi gases loaded into a square optical lattice, with population imbalance between one component and the others. At strong coupling the system is…
Field-orientation dependence of quantum phase transitions in the S=1/2 triangular-lattice antiferromagnet BaCoSbO
Kazuki Okada, Hidekazu Tanaka, Nobuyuki Kurita +3
BaCoSbO approximates the two-dimensional spin-1/2 triangular-lattice Heisenberg antiferromagnet. This compound displays magnetic-field-induced quantum phase transitions…
Linear Flavor-Wave Analysis of SU(4)-Symmetric Tetramer Model with Population Imbalance
Yuki Miyazaki, Giacomo Marmorini, Nobuo Furukawa +1
We study the quantum magnetism of the SU(4) Mott insulator in a square optical superlattice, in which atoms with four nuclear-spin components strongly interact with each other, in…
Supersolid Devil's Staircases of Spin-Orbit-Coupled Bosons in Optical Lattices
Daisuke Yamamoto, Kotaro Bannai, Nobuo Furukawa +1
We study the emergence of supersolid Devil's staircases of spin-orbit coupled bosons loaded in optical lattices. We consider two- and three-dimensional systems of pseudo-spin-…
Quantum droplet of a two-component Bose gas in an optical lattice near the Mott insulator transition
Yoshihiro Machida, Ippei Danshita, Daisuke Yamamoto +1
We theoretically study dynamical formation of a quantum droplet in a two-component Bose-Hubbard system with an external trap potential. Specifically, the superfluid in the central…