Abstract
Some Hamiltonians are constructed from the unitary \({\check{R}_{i,i+1}(\theta, \varphi)}\)-matrices, where θ and \({\varphi}\) are time-independent parameters. We show that the entanglement sudden death (ESD) can happen in these closed Yang–Baxter systems. It is found that the ESD is not only sensitive to the initial condition, but also has a great connection with different Yang–Baxter systems. Especially, we find that the meaningful parameter \({\varphi}\) has a great influence on ESD.
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Hu, T., Sun, C. & Xue, K. The sudden death of entanglement in constructed Yang–Baxter systems. Quantum Inf Process 9, 27–35 (2010). https://doi.org/10.1007/s11128-009-0125-x
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DOI: https://doi.org/10.1007/s11128-009-0125-x