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- W4367309620 abstract "Classification of multipartite states aims to obtain a set of operationally useful and finite entanglement classes under the action of either local unitary (LU) or stochastic local operation and classical communication (SLOCC). In this work, we propose a computationally simple approach to find these classes by using higher order singular value decomposition (HOSVD) and the concurrency of three lines. Since HOSVD simultaneously diagonalizes the one-body reduced density matrices (RDM) of multipartite states, the core tensor of multipartite states is the pure-state representation of such simultaneously diagonalized one-body RDM. We identified the special core tensors of three and four qubits, which are also genuinely entangled by default. The special core tensors are further categorized into families of states based on their first $n$-mode singular values, $sigma_1^{(i)2}$. The current proposal is limited to multi-qubit system, but it scales well with large multi-qubit systems and produces a finite number of families of states." @default.
- W4367309620 created "2023-04-29" @default.
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- W4367309620 date "2023-04-28" @default.
- W4367309620 modified "2023-10-18" @default.
- W4367309620 title "Special core tensors of multi-qubit states and the concurrency of three lines" @default.
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- W4367309620 doi "https://doi.org/10.1007/s11128-023-03939-w" @default.
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