Quantum entanglement based on surface phonon polaritons in condensed matter systems
Quantum entanglement based on surface phonon polaritons in condensed matter systems
复制标题
凝聚态系统中基于表面声子极化子的量子纠缠
DOI：
10.1063/1.4802887
复制
发表时间：
2013-04-01
期刊：
影响因子：
1.6
通讯作者：
Lu, Yan-qing
中科院分区：
文献类型：
--
作者：
Ming, Yang;Wu, Zi-jian;Lu, Yan-qing
表面声子极化激元（SPhP）是凝聚态系统中一种特殊的传播模式。我们研究了SPhP模的纠缠。通过将纠缠光子发射到光栅耦合系统上产生纠缠的SPhP对。导出了纠缠光子与纠缠LRSPhPs耦合过程的相互作用哈密顿量。利用微扰理论得到了纠缠LRSPhPs的态矢量。揭示了LRSPhP纠缠的起源。采用波动力学的方法来描述耦合过程。为了体现非局域性，研究了二阶相关函数。版权所有2013作者。除非另有说明，否则所有文章内容均根据Creative Commons Attribution 3.0 Unported License许可。[http：//dx.doi.org/10.1063/1.4802887]
Surface phonon polariton (SPhP) is a special propagation mode in condensed matter systems. We present an investigation on the entanglement of SPhP modes. The entangled SPhP pairs are generated through launching entangled photons onto the grating coupling systems. The interaction Hamiltonian for the coupling process between entangled photons and entangled LRSPhPs is derived. State vector of the entangled LRSPhPs is obtained through the perturbation theory. The origin of LRSPhP entanglement is revealed. Wave mechanics approach is taken to describe the coupling process as an alteration. To present the nonlocality, the second-order correlation function is studied. Copyright 2013 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License. [http://dx.doi.org/10.1063/1.4802887]