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Adiabatic preparation of maximum entanglement in hybrid quantum systems with the Z_2 symmetry

机译：绝热最大纠缠态的制备混合量子系统与Z_2对称

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摘要

A simple theoretical scheme with respect to preparing the maximum entanglement of a nitrogen-vacancy (NV) spin and the quantized nanotubes carried with the tunable direct current is studied in this work. Basing on its inherent Z_2 symmetry of the general Jaynes-Cummings model in this spin-phonon coupling system, two special adiabatic channels to bridge the initial discrete ground states and the final ground states with the maximum entanglement are discussed. To further supplement this scheme, we also discuss another equivalent and suitable setup, namely the NV spin and surface acoustic wave strong strain coupling scheme. Owing to adiabaticity, this scheme may be considered as an encouraged attempt for preparing the nonclassical state utilizing the systemic symmetry.
机译：对一个简单的理论方案准备的最大纠缠氮-空位(NV)自旋和量化碳纳米管可调的直流电研究了这项工作。Z_2对称的j - c模型在这个自旋声子耦合系统,两个特殊的绝热通道桥最初的离散基态和最后的基态的最大纠缠态进行了讨论。进一步补充这个方案,我们还讨论另一个等价的和适当的设置,即NV旋转,声表面波强大的压力耦合方案。计划可能被认为是一个鼓励准备模状态使用系统性对称。

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