Multipartite Entanglement Detection via Correlation Minor Norm

• URL: http://arxiv.org/abs/2302.00650v1
• Date: Wed, 1 Feb 2023 18:28:15 GMT
• Title: Multipartite Entanglement Detection via Correlation Minor Norm
• Authors: Rain Lenny, Amit Te'eni, Bar Y. Peled, Avishy Carmi, and Eliahu Cohen
• Abstract summary: Entanglement is a uniquely quantum resource giving rise to many quantum technologies. The correlation minor norm (CMN) was recently suggested as a bipartite entanglement detector employing bounds on the quantum correlation matrix.
• Score: 0.7829352305480283
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Entanglement is a uniquely quantum resource giving rise to many quantum technologies. It is therefore important to detect and characterize entangled states, but this is known to be a challenging task, especially for multipartite mixed states. The correlation minor norm (CMN) was recently suggested as a bipartite entanglement detector employing bounds on the quantum correlation matrix. In this paper we explore generalizations of the CMN to multipartite systems based on matricizations of the correlation tensor. It is shown that the CMN is able to detect and differentiate classes of multipartite entangled states. We further analyze the correlations within the reduced density matrices and show their significance for entanglement detection. Finally, we employ matricizations of the correlation tensor for introducing a measure of global quantum discord.

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