Quantum spin models with electrons in Penning traps
Quantum spin models with electrons in Penning traps
复制标题
潘宁陷阱中电子的量子自旋模型
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
P. Tombesi
中科院分区：
文献类型：
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作者：
G. Ciaramicoli;I. Marzoli;P. Tombesi
我们提出了一个方案来设计一个有效的自旋哈密顿量，它是从一个限制在微潘宁陷阱中的电子系统开始的。通过适当的电磁脉冲序列和自由演化周期的交替，我们可以控制自旋-自旋相互作用的形状和强度。此外，我们还可以修正粒子自旋所经历的有效磁场。这个过程使我们能够复制著名的量子自旋系统，如Ising和$XY$模型。由于其可伸缩性，我们的方案可以应用于不久的将来技术所能达到的相当大数量的捕获粒子。
We propose a scheme to engineer an effective spin Hamiltonian starting from a system of electrons confined in micro-Penning-traps. By means of appropriate sequences of electromagnetic pulses, alternated with periods of free evolution, we control the shape and strength of the spin-spin interaction. Moreover, we can modify the effective magnetic field experienced by the particle spin. This procedure enables us to reproduce notable quantum spin systems, such as Ising and $XY$ models. Thanks to its scalability, our scheme can be applied to a fairly large number of trapped particles within the reach of near future technology.