Comparison of Perfect and Quasi Werner States

• URL: http://arxiv.org/abs/2004.03380v1
• Date: Fri, 3 Apr 2020 01:53:10 GMT
• Title: Comparison of Perfect and Quasi Werner States
• Authors: Fatima-Zahra Siyouri (Mohammed V University), Fatima El Azzouzi (Sidi Mohamed Ben Abdellah University)
• Abstract summary: We investigate comparatively the behaviors of quantum discord and concurrence for Werner states based on two bipartite entangled squeezed states. The maximally entangled squeezed states are regarded as a perfect-Werner states, while the non-maximally entangled squeezed states are called quasi-Werner states.
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• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: In this paper, we investigate comparatively the behaviors of quantum discord and concurrence for Werner states based on two bipartite entangled squeezed states. The maximally entangled squeezed states are regarded as a perfect-Werner states, while the non-maximally entangled squeezed states are called quasi-Werner states. We show that, the behavior of the quantum correlations keep unchanged for these two types of states. However, the quantum correlations amount presents in perfect-Werner states is very higher than that presents in quasi-Werner ones. Furthermore, we show that for large values of squeezed parameter the quasi-Werner states approaches the perfect-Werner states qualitatively and quantitatively.

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