Einstein-Podolsky-Rosen steering paradox "2=1'' for $N$ qubits

• URL: http://arxiv.org/abs/2406.17247v1
• Date: Tue, 25 Jun 2024 03:28:26 GMT
• Title: Einstein-Podolsky-Rosen steering paradox "2=1'' for $N$ qubits
• Authors: Zhi-Jie Liu, Jie Zhou, Hui-Xian Meng, Xing-Yan Fan, Mi Xie, Fu-lin Zhang, Jing-Ling Chen,
• Abstract summary: EPR paradox highlights the absence of a local realistic explanation for quantum mechanics. We show that the contradiction holds for any $N$-qubit state as long as both the pure state requirement and the measurement requirement are satisfied.
• Score: 16.688291626259435
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Einstein-Podolsky-Rosen (EPR) paradox highlights the absence of a local realistic explanation for quantum mechanics, and shows the incompatibility of the local-hidden-state models with quantum theory. For $N$-qubit states, or more importantly, the $N$-qubit mixed states, we present the EPR steering paradox in the form of the contradictory equality "2=1". We show that the contradiction holds for any $N$-qubit state as long as both the pure state requirement and the measurement requirement are satisfied. This also indicates that the EPR steering paradox exists in more general cases. Finally, we give specific examples to demonstrate and analyze our arguments.

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