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arXiv 1604.04519quant-ph
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两个相互作用的二能级系统的精确可解含时模型

Exactly solvable time-dependent models of two interacting two-level systems

R. Grimaudo, A. Messina, H. Nakazato

摘要:

两个耦合的二能级系统下放置的外部时间相关的磁场建模的一般哈密顿量赋予的对称性,使我们能够减少到两个独立的二维子动力学的总动力学。通过适当地设计磁场,每个子动力学被带入一个精确可解的形式,从而我们得到一个精确的时间演化的复合系统。几个物理相关的和有趣的量进行评估,揭示了有趣的现象,在这样一个系统。

英文摘要:

Two coupled two-level systems placed under external time-dependent magnetic fields are modeled by a general Hamiltonian endowed with a symmetry that enables us to reduce the total dynamics into two independent two-dimensional sub-dynamics. Each of the sub-dynamics is shown to be brought into an exactly solvable form by appropriately engineering the magnetic fields and thus we obtain an exact time evolution of the compound system. Several physically relevant and interesting quantities are evaluated exactly to disclose intriguing phenomena in such a system.

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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