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arXiv 0812.0755quant-phcond-mat.mes-hall
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散射自旋间纠缠的上升时间

Rising time of entanglement between scattering spins

F. Ciccarello, M. Paternostro, G. M. Palma, M. Zarcone

摘要:

我们研究了运动粒子被静止自旋散射过程中纠缠的时间演化。我们发现,纠缠单调增加,在一个短暂的,然后饱和到一个稳态值。对于准单色运动粒子,瞬态时间只取决于入射波包的群速度和宽度,而对散射粒子的相互作用强度和自旋数不敏感。这些特征不依赖于交互模型,并且可以在各种物理设置中看到。

英文摘要:

We investigate the time evolution of entanglement in a process where a mobile particle is scattered by static spins. We show that entanglement increases monotonically during a transient and then saturates to a steady-state value. For a quasi-monochromatic mobile particle, the transient time depends only on the group-velocity and width of the incoming wavepacket and is insensitive to the interaction strength and spin-number of the scattering particles. These features do not depend on the interaction model and can be seen in various physical settings.

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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