Special core tensors of multi-qubit states and the concurrency of three lines

• Main Authors: Choong, Pak Shen, Zainuddin, Hishamuddin, Chan, Kar Tim, Said Husain, Sharifah Kartini
• Format: Article
• Published: Springer 2023
• Online Access: http://psasir.upm.edu.my/id/eprint/109127/; https://link.springer.com/article/10.1007/s11128-023-03939-w?error=cookies_not_supported&code=474cfc27-c36f-4a6b-a9ae-030a092a1441

In this work, we propose a computationally simple approach to identify the local unitary (LU) entanglement classes of multi-qubit states by higher-order singular value decomposition (HOSVD). For multipartite states, HOSVD simultaneously diagonalizes their one-body reduced density matrices (RDM) by L...