469 citations · 2.9k across the 73 of their papers we have counts for
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Entanglement bipartitioning and tree tensor networks
Kouichi Okunishi, Hiroshi Ueda, Tomotoshi Nishino
We propose the entanglement bipartitioning approach to design an optimal network structure of the tree-tensor-network (TTN) for quantum many-body systems. Given an exact ground-sta…
Hyperbolic Deformation on Quantum Lattice Hamiltonians
Hiroshi Ueda, Tomotoshi Nishino
A group of non-uniform quantum lattice Hamiltonians in one dimension is introduced, which is related to the hyperbolic -dimensional space. The Hamiltonians contain only near…
Two-Site shift Product Wave Function Renormalization Group Method Applied to Quantum Systems
Hiroshi Ueda, Tomotoshi Nishino, Koichi Kusakabe
We report a way of wave function estimation for the density matrix renormalization group (DMRG) method applied to quantum systems, which has 2-site modulation, when the system size…