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cond-mat.str-el2024
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…
cond-mat.str-el2024★ 14 cited
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…
cond-mat.str-el2024★ 16 cited
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…