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arXiv 1106.2297quant-ph
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Qutrit:一致磁场中有限Qutrit链的纠缠动力学

Qutrit: entanglement dynamics in the finite qutrit chain in the consistent magnetic field

E. A. Ivanchenko

摘要:

本文从Liouville-vonNeumann方程出发,得到了描述任意含时外磁场中量子态或耦合量子态的封闭方程组。通过解析和数值计算研究了初始状态和磁场调制对系统动力学的影响。我们比较了具有置换粒子对称性的双量子系统中相对纠缠度的动力学性质。我们发现在两个耦合量子系统中存在保持纠缠的磁场调制。给出了2 ~ 6量子数链中纠缠度的解析表达式。

英文摘要:

Based on the Liouville-von Neumann equation, we obtain closed system of equations for the description of a qutrit or coupled qutrits in arbitrary time-dependent external magnetic field. The dependence of the dynamics on the initial states and magnetic field modulation is studied analytically and numerically. We compare the relative entanglement measure's dynamics in the bi-qutrit system with permutation particle symmetry. We find the magnetic field modulation which retains the entanglement in the system of two coupled qutrits. Analytical formulas for entanglement measures in the chain from 2 to 6 qutrits are presented.

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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