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-  2017 

Heisenberg XY自旋环在非均匀磁场下的纠缠平台 Entanglement Platform for Heisenberg XY Spin Rings under the Inhomogeneous Magnetic Field

Keywords: 局域磁场,各向同性与各向异性,保真度,纠缠平台

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Abstract:

为了调查一个处于非均匀磁场中的海森堡自旋环模型,本文通过引入两个控制格点来调控另外两个被控格点之间的纠缠.结果表明,在各向同性情况下,非均匀磁场可使获得最大纠缠态的自旋耦合常数J_1和B的取值范围更大.在各向异性情形下,发现当被控格点之间的耦合常数不小于被控格点与控制格点之间的耦合常数时,其结果和各向同性的结论一致

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