23 citations · 42 across the 5 of their papers we have counts for
6 papers
Quantum magnetism of the spin-1 kagome-lattice antiferromagnet
Katsuhiro Morita
We investigate the spin-1 kagome-lattice Heisenberg antiferromagnet using large-scale Lanczos diagonalization and the finite-temperature Lanczos method. The zero-temperature magnet…
Valence Bond Crystal Ground State of the 1/9 Magnetization Plateau in the Spin-1/2 Kagome Lattice
Katsuhiro Morita
We investigate the ground state of a spin-1/2 kagome antiferromagnet at the 1/9 magnetization plateau, focusing primarily on six types of valence bond crystal (VBC) distortions. Am…
Six magnetization plateau phases in a spin-1/2 distorted kagome antiferromagnet: application to
Kazu Bodaiji, Katsuhiro Morita, Yoshiyuki Fukumoto
A recently discovered kagome antiferromagnet has attracted significant interest due to its unique kagome lattice structure and magnetic p…
Engineering of a Low-Entropy Quantum Simulator for Strongly Correlated Electrons Using SU()-Symmetric Cold Atom Mixtures
Daisuke Yamamoto, Katsuhiro Morita
An advanced cooling scheme, incorporating entropy engineering, is vital for isolated artificial quantum systems designed to emulate the low-temperature physics of strongly correlat…
A Series Expansion Study for Large Negative Quantum Renormalization of Magnon Spectra in the Kagome-Lattice Heisenberg Antiferromagnet CsCuSnF
Singo Kogure, Masashi Takeda, Katsuhiro Morita +3
The series expansion method is used to study magnon spectra of the kagome system with nearest-neighbor exchange interaction and out-of-plane Dzyaloshinskii-Moriya (DM) interact…
Exact non-magnetic ground state and residual entropy of S = 1/2 Heisenberg diamond spin lattices
K. Morita, N. Shibata
Exactly solvable frustrated quantum spin models consisting of a diamond unit structure are presented. The ground states are characterized by tetramer-dimer states with a macroscopi…