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基于金刚石氮-空位中心系统的光子空间-极化超CNOT门

Photon Spatial-polarization Hyper-CNOT Gate Based on Nitrogen-vacancy Center in Diamond

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摘要

量子信息学作为一门新兴学科引起了科学家的关注,量子逻辑门是量子信息处理的关键结构。在本文中,我们提出基于金刚石氮-空位中心的偶极诱导透明(DIT)过程,这个金刚石氮-空位中心囚禁于一个耦合到两个波导的光子晶体腔。在Purcell体系中,对于非耦合腔和耦合腔的圆极化光的反射率和透射率的差异是鲁棒且可调的,这说明DIT是明显的。利用该DIT,我们实现了空间极化超CNOT门。在多个自由度的量子比特系统的量子信息协议中它们可以用更少的资源来执行更多的量子操作,这样可以减少能量损耗和光子耗散。

Abstract

Quantum informatics has attracted the attention of scientists as a new discipline in recent years,Quantum logic gate is the key structure of quantum information processing. We proposed the dipole induced transparency (DIT) of a diamond nitrogen-vacancy center embedded in a photonic crystal cavity coupled to two waveguides in this paper. In the Purcell system,the difference in reflectivity and transmittance for circularly polarized light in the uncoupled and coupled cavities is robust and adjustable,indicating that the DIT is obvious. With this DIT,We constructed Spatial-polarization hyper-CNOT gate.They can be used to perform more quantum operations with less resources in the quantum information protocols with multiqubit systems in several DOFs,which may reduce the resources consumed and the photonic dissipation.

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中图分类号:O431

DOI:10.3788/jqo20172304.0010

所属栏目:因态量子物理与器件

基金项目:山西工程技术学院科研基金(201706001)

收稿日期:2017-06-10

修改稿日期:2017-07-31

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作者单位    点击查看

李静:山西工程技术学院 基础部,山西 阳泉 045000
刘阿鹏:山西工程技术学院 基础部,山西 阳泉 045000
孙立新:山西工程技术学院 基础部,山西 阳泉 045000

联系人作者:李静(1102826779@qq.com)

备注:李静(1989-)女,山西朔州人,助教,研究方向:量子通信,

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引用该论文

LI Jing,LIU A-peng,SUN Li-xin. Photon Spatial-polarization Hyper-CNOT Gate Based on Nitrogen-vacancy Center in Diamond[J]. Acta Sinica Quantum Optica, 2017, 23(4): 380-386

李静,刘阿鹏,孙立新. 基于金刚石氮-空位中心系统的光子空间-极化超CNOT门[J]. 量子光学学报, 2017, 23(4): 380-386

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