Entanglement Witnesses Based on Symmetric Informationally Complete Measurements

• URL: http://arxiv.org/abs/2011.01705v1
• Date: Tue, 3 Nov 2020 13:47:06 GMT
• Title: Entanglement Witnesses Based on Symmetric Informationally Complete Measurements
• Authors: Tao Li, Le-Min Lai, Deng-Feng Liang, Shao-Ming Fei and Zhi-Xi Wang
• Abstract summary: We study entanglement witness and present a construction of entanglement witnesses in terms of symmetric informationally complete measurements (SIC-POVM) It can be found this witness detects more entanglement than previous separability method given also by SIC-POVM.
• Score: 3.179191296550385
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We study entanglement witness and present a construction of entanglement witnesses in terms of the symmetric informationally complete measurements (SIC-POVM). The capability of our witness is shown by some examples and it can be found this witness detects more entanglement than previous separability method given also by SIC-POVM. What's more, comparing with the dimension dependence of SIC-POVM, we also give the entanglement witnesses can be always constructed from general symmetric informationally complete measurements (GSIC-POVM).

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