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arXiv quant-ph/0610176quant-ph
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磁场中纠缠的三量子比特动力学

Three-qubit dynamics of entanglement in magnetic field

E. A. Ivanchenko

摘要:

通过对具有交换相互作用的三个磁量子位的Liouville-von Neumann方程进行解复化,获得了局域布洛赫矢量和自旋关联函数的封闭方程组,该交换相互作用发生在任意时间相关的外部磁场中。对初始条件和磁场调制对纠缠的影响进行了数值比较分析。本研究对干涉实验的分析和量子计算的研究具有一定的参考价值。

英文摘要:

A closed system of the equations for the local Bloch vectors and spin correlation functions is obtained by decomplexification of the Liouville-von Neumann equation for three magnetic qubits with the exchange interaction, that takes place in an arbitrary time-dependent external magnetic field. The numerical comparative analysis of entanglement is carried out depending on initial conditions and the magnetic field modulation. The present study may be useful for analysis of interference experiments and in the field of quantum computing.

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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