Experimental verification of anisotropic invariance for three-qubit states

Jie Zhu, Meng Jun Hu, Shuming Cheng, Michael J.W. Hall, Chuan Feng Li, Guang Can Guo, Yong Sheng Zhang

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

We experimentally test the recently predicted anisotropic invariance properties of pure three-qubit states, via generation and measurement of polarization-path entangled three-qubit states. These properties do not require aligned reference frames, and can be determined from measurements on any two of the qubits. They have several applications, such as a universal ordering of pairwise quantum correlations, strong monogamy relations for Bell inequalities and quantum steering, and a complementarity relation for Bell nonlocality versus 3-tangle, some of which we also test. The results indicate that anisotropic invariance, together with the three-qubit Bloch vector lengths, provide a robust and complete set of invariants for such states under local unitary transformations.

Original languageEnglish
Article number040103
JournalPhysical Review A
Volume99
Issue number4
DOIs
Publication statusPublished - 30 Apr 2019

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