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arXiv 2106.09646quant-phcs.ITmath.IT
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Ising-XXZ金刚石链中杂质引起的热量子关联和隐形传态的增加

Impurity-induced increase in the thermal quantum correlations and teleportation in an Ising-XXZ diamond chain

Saulo L. L. Silva, Moises Rojas

摘要:

本文研究了自旋为1/2的含畸变杂质的Ising-XXZ金刚石链中的量子关联。我们已经表明,引入杂质的链可以显着增加纠缠以及量子关联相比,没有杂质的原始模型。由于杂质参数的选择具有很大的灵活性,因此所提出的模型是非常通用的,这一事实对于未来的实验测量是非常有用的。除了纠缠和量子相干性之外,我们还研究了在Ising-XXZ金刚石链中含有畸变杂质的海森堡二聚体耦合构成的量子信道中的量子隐形传态,以及量子隐形传态的保真度。我们的分析表明,适当的参数选择可以大大增加所有的措施分析。为了比较的目的,我们提出了我们所有的结果与测量的结果,为原来的模型,没有杂质,在以前的作品中研究。

英文摘要:

In this work we analyze the quantum correlations in a spin-1/2 Ising-XXZ diamond chain with one plaquette distorted impurity. We have shown that the introduction of impurity into the chain can significantly increase entanglement as well as quantum correlations compared to the original model, without impurity. Due to the great flexibility in the choice of impurity parameters, the model presented is very general and this fact can be very useful for future experimental measurements. In addition to entanglement and quantum coherence, we studied quantum teleportation through a quantum channel composed by a coupled of Heisenberg dimers with distorted impurity in an Ising-XXZ diamond chain, as well as fidelity in teleportation. Our analysis shows that the appropriate choice of parameters can greatly increase all the measures analyzed. For comparison purposes, we present all our results together with the results of the measurements made for the original model, without impurity, studied in previous works.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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