arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2005.14615cond-mat.mes-hallquant-ph
收藏

远程电子-声子系统间光生声子纠缠产生的两步动力学

Two-step dynamics of photoinduced phonon entanglement generation between remote electron-phonon systems

Kunio Ishida, Hiroaki Matsueda

摘要:

数值研究了光辐照远程电子-声子系统中声子间量子纠缠的产生。在由可见/紫外激光脉冲激发时,立即产生电子的纠缠,并且声子的纠缠通过电子-声子相互作用跟随,即,声子的纠缠产生是两步过程。因此,重要的是设计入射光脉冲的时间特性,以便控制电子和/或声子的纠缠。由海森堡运动方程导出的量子互信息和复合模揭示了这些特征。计算结果还表明,声子纠缠的动力学可以通过散射光的时间分辨光谱观察到。

英文摘要:

The generation of quantum entanglement between phonons in photoirradiated remote electron-phonon systems is numerically studied. Upon excitation by a visible/ultraviolet laser pulse, the entanglement of electrons is immediately generated and that of phonons follows via electron-phonon interactions, i.e., the entanglement generation of phonons is a two-step process. Therefore, it is important to design the temporal properties of incident optical pulses in order to control the entanglement of electrons and/or phonons. These features are revealed by the quantum mutual information and the composite modes derived from the Heisenberg equation of motion. The calculated results also show that the dynamics of the phonon entanglement can be observed by time-resolved spectroscopy on the scattered light.

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。

↑