Entanglement witnesses from mutually unbiased measurements

• URL: http://arxiv.org/abs/2109.14069v1
• Date: Tue, 28 Sep 2021 22:15:30 GMT
• Title: Entanglement witnesses from mutually unbiased measurements
• Authors: Katarzyna Siudzi\'nska and Dariusz Chru\'sci\'nski
• Abstract summary: A new family of positive, trace-preserving maps is introduced. It is defined using the mutually unbiased measurements, which generalize the notion of mutual unbiasedness of orthonormal bases.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: A new family of positive, trace-preserving maps is introduced. It is defined using the mutually unbiased measurements, which generalize the notion of mutual unbiasedness of orthonormal bases. This family allows one to define entanglement witnesses whose indecomposability depends on the characteristics of the associated measurement operators.

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