Parameterized Bipartite Entanglement Measure

• URL: http://arxiv.org/abs/2206.07913v1
• Date: Thu, 16 Jun 2022 04:35:35 GMT
• Title: Parameterized Bipartite Entanglement Measure
• Authors: Zhi-Wei Wei, Shao-Ming Fei
• Abstract summary: We derive analytical lower bounds for the $alpha$-concurrence for isotropic states and Werner states. We also calculate explicitly the analytic expressions of the $alpha$-concurrence for isotropic states and Werner states.
• Score: 3.5075398029752725
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We propose a novel parameterized entanglement measure $\alpha$-concurrence for bipartite systems. By employing positive partial transposition and realignment criteria, we derive analytical lower bounds for the $\alpha$-concurrence. Moreover, we calculate explicitly the analytic expressions of the $\alpha$-concurrence for isotropic states and Werner states.

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