Hui Zhao, Yu Yang, Naihuan Jing, Zhi-Xi Wang, Shao-Ming Fei
Published 2022-05-31Version 1
We study entanglement and genuine entanglement of tripartite and four-partite quantum states by using Heisenberg-Weyl (HW) representation of density matrices. Based on the correlation tensors in HW representation, we present criteria to detect entanglement and genuine tripartite and four-partite entanglement. Detailed examples show that our method can detect more entangled states than previous criteria.
Journal: International Journal of Theoretical Physics (2022) 61:136
Separability criteria based on Bloch representation of density matrices
Bures Metrics for Certain High-Dimensional Quantum Systems
Characterizations of bilocality and $n$-locality of correlation tensors
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