106 citations · 142 across the 15 of their papers we have counts for
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Spin amplitude wave due to dipole-quadrupole hybridization in spin-1 pyrochlore magnets
Hiroki Nakai, Chisa Hotta
We explore the quantum pseudospin-1 pyrochlore magnet featuring Fe-based spinel oxides that addresses the formation of amplitude-modulated spin-density waves. We propose tha…
Diffusive dynamics of fractionalized particles and the enhanced conductivity at the border of the neutral-ionic transition
Yuta Sakai, Chisa Hotta
We study the diffusive dynamics of the classical one-dimensional lattice model of mobile particles featuring the incoherent metallic state of the organic TTF-CA found in the vicini…
Cluster-projected matrix product state: framework for engineering exact quantum many-body ground states in one and two dimensions
Hidehiro Saito, Chisa Hotta
We propose a framework to design concurrently a frustration-free quantum many-body Hamiltonian and its numerically exact ground states on a sufficiently large finite-size cluster i…
Pinch-point spectral singularity from the interference of topological loop states
Masafumi Udagawa, Hiroki Nakai, Chisa Hotta
Pinch point is a spectral discontinuity found in the neutron diffraction image of spin ice. Similar spectral singularity is commonly observed in a broad range of systems that have…
Phase diagram of the quantum spin-1/2 Heisenberg- model on a frustrated zigzag chain
Hidehiro Saito, Chisa Hotta
We investigate the quantum spin-1/2 zigzag chain with frustrated - Heisenberg interactions, incorporating additional off-diagonal exchange interactions known as the t…
Sample complexity of matrix product states at finite temperature
Atsushi Iwaki, Chisa Hotta
For quantum many-body systems in one dimension, computational complexity theory reveals that the evaluation of ground-state energy remains elusive on quantum computers, contrasting…
Exact matrix product states at the quantum Lifshitz tricritical point in a spin-1/2 zigzag-chain antiferromagnet with anisotropic -term
Hidehiro Saito, Chisa Hotta
Quantum anisotropic exchange interactions in magnets can induce competitions between phases in a different manner from those typically driven by geometrically frustrated interactio…