From the 3 of 11 linked papers with an AI index.
1 citations · 1 across the 6 of their papers we have counts for
11 papers
Finite-size effects and interaction-driven crossovers in quarter-filled attractive Hubbard model: Exact diagonalization, DMRG and machine-learning analysis
Md Fahad Equbal, M. A. H. Ahsan, Satoru Hayami
The paper studies the quarter‑filled attractive Hubbard model on finite cylindrical lattices using exact diagonalization, DMRG, and unsupervised machine‑learning methods to identif…
Spatially Dispersive Second-Harmonic Generation in Ferroaxial Systems
Takumi Shiro, Satoru Hayami
Spatially dispersive second-harmonic generation (SHG) provides a powerful probe of centrosymmetric multipolar states beyond the electric-dipole approximation. We develop a gauge-co…
Magnetic quadrupole current generation and accumulation in noncentrosymmetric systems
Yuuga Takasu, Satoru Hayami
The paper investigates how magnetic quadrupole (MQ) currents can be generated and accumulate at sample edges in noncentrosymmetric antiferromagnets, using symmetry analysis and lin…
Sixteenfold Classification of Many-Body Multipoles from Rotation-Compatible Canonical Symmetries
Shingo Kuniyoshi, Rikuto Oiwa, Satoru Hayami
The paper introduces a sixteenfold classification scheme for many‑body electronic multipole operators using rotation‑compatible canonical symmetries, distinguishing operators by pa…
Piezoaxial coupling for strain-selected ferroaxial domain control
Rikuto Oiwa, Satoru Hayami
We formulate a symmetry-based hierarchy of strain-derived conjugate fields for ferroaxial order, and demonstrate strain-selected ferroaxial domain control using first-principles ca…
Theory of Many-Body Multipole Operators in Single-Centered Electron Systems: Two-Body Toroidal Monopoles in Spinless Orbitals
Shingo Kuniyoshi, Rikuto Oiwa, Satoru Hayami
One-body multipole operators are defined as irreducible representations of rotational symmetry together with spatial-inversion and time-reversal symmetries, providing a systematic…