| 单变量X态几何关联的动力学特性 |
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| 引用本文： | 桂卫军,饶伟. 单变量X态几何关联的动力学特性[J]. 南昌水专学报, 2013, 0(6): 5-7 |
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| 作者姓名： | 桂卫军 饶伟 |
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| 作者单位： | [1]南昌工程学院理学院,江西南昌330099 [2]南昌工程学院信息工程学院,江西南昌330099 |
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| 基金项目： | 江西省教育厅科技项目（GJJ13748）. |
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| 摘 要： | 基于量子失谐(quantum discord)几何测量(简称GMQD)的方法求解了单变量X态的量子关联.在考虑环境的影响时,采用量子主方程求解出了一阶近似下该态在环境作用后的态.然后通过对比该态的纠缠度以及GMQD,可以发现GMQD具有比量子纠缠更优异的抗消相干性能.
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| 关 键 词： | 量子光学 X态 量子关联 几何测量 |
Dynamic property of geometric quantum discord of single-parameter X states |
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| GUI Weijun,RAO Wei. Dynamic property of geometric quantum discord of single-parameter X states[J]. Journal of Nanchang College of Water Conservancy and Hydroelectric Power, 2013, 0(6): 5-7 |
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| Authors: | GUI Weijun RAO Wei |
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| Affiliation: | 1. School of Science ;2. School of Information Engineering, Nanchang Institute of Technology,Nanehang 330099 ,China) |
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| Abstract: | Based on the method of geometric measure of quantum discord（ GMQD）, the paper obtains the quantum relation of the single-parameter X states. The evolved states influenced by environment are calcu- lated with the quantum master equation under one-order approximation. Through comparing the entangle- ment degree and GMQD of the evolved states, it comes to the conclusion that GMQD shows a stronger re- sistance to de-coherence than quantum entanglement. |
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| Keywords: | quantum optics X states quantum correlation geometric measure |
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