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arXiv 0810.0454quant-ph
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双激励铁磁自旋链作为一对耦合反冲转子

Doubly excited ferromagnetic spin-chain as a pair of coupled kicked rotors

T. Boness, K. Kudo, T. S. Monteiro

摘要:

我们表明,双激发一维海森堡铁磁链的动力学,受到短脉冲从抛物磁场可以分析为一对量子踢转子。通过专注于在踢XXZ模型中的两个磁振子动力学,我们研究了各向异性参数-控制磁振子-磁振子相互作用的强度-如何改变两个“图像”耦合踢转子之间的耦合性质。我们研究了量子态转移的可能性,并表明人们可以控制自旋激发是一起传输,还是彼此分离。

英文摘要:

We show that the dynamics of a doubly-excited 1D Heisenberg ferromagnetic chain, subject to short pulses from a parabolic magnetic field may be analyzed as a pair of quantum kicked rotors. By focusing on the two-magnon dynamics in the kicked XXZ model we investigate how the anisotropy parameter - which controls the strength of the magnon-magnon interaction - changes the nature of the coupling between the two "image" coupled Kicked Rotors. We investigate quantum state transfer possibilities and show that one may control whether the spin excitations are transmitted together, or separate from each other.

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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