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Visualization of Entanglement Geometry by Structural Optimization of Tree Tensor Network by Hikihara, Toshiya; Ueda, Hiroshi; Okunishi, Kouichi; Harada, Kenji; Nishino, Tomotoshi is a scholarly article available to read on EtoBox.

What is Visualization of Entanglement Geometry by Structural Optimization of Tree Tensor Network about?

In tensor-network analysis of quantum many-body systems, it is of crucial importance to employ a tensor network with a spatial structure suitable for representing the state of interest. In the previous work [Hikihara et al., Phys. Rev. Research 5, 013031 (2023)], we proposed a structural optimization algorithm for tree-tensor networks. In this paper, we apply the algorithm to the Rainbow-chain model, which has a product state of singlet pairs between spins separated by various distances as an approximate ground state. We then demonstrate that the algorithm can successfully visualize the spatial pattern of spin-singlet pairs in the ground state.

Author

Hikihara, Toshiya; Ueda, Hiroshi; Okunishi, Kouichi; Harada, Kenji; Nishino, Tomotoshi

Published

2024

Language

EN