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Development of long-term quantum memories using rare-earth doped crystals
2019-11-05 17:23:14 | 【 【打印】【关闭】

SEMINAR 

Transparent Ceramics Research Center, SICCAS 

Key Laboratory of Transparent Opto-fuctional Inorganic Materials, CAS 

  影音先锋资源男人站 透明陶瓷研究中心 

    

Development of long-term quantum memories using rare-earth doped crystals 

报告人:钟满金 副研究员  

(南方科学技术大学) 

    

时间:116 (星期三)15:00 PM 

地点:嘉定园区F5楼第2会议室

联系人:李江(69163689

 

  Abstract:Quantum memories for light with long storage times are required for quantum communication applications. Rare-earth doped crystals have been identified as promising candidates for the development of these memories due to the good coherence properties of their optically addressable quantum transitions.  

  In this talk, I will briefly introduce the rare-earth based memory systems and present some impressive recent progress in this field. The focus will be on two rare-earth systems and the first one is Eu3+:Y2SiO5 in which a coherence time of 6 hours was achieved. This is the longest coherence time observed in a solid-state system so far. The second rare-earth earth system to be introduced is Eu3+:Y2SiO5 in which a coherence times of 1.3 s was observed. This is the longest coherence time observed in a solid-state quantum memory system with optical transitions at telecommunication wavelengths.  

  个人简介:钟满金,2018年加入南方科技大学量子科学与工程研究院,担任副研究员,成立固体量子存储设备实验室。2009-2018年间,在澳大利亚国立大学激光物理中心先后从事博士学习与博士后研究,师从于Matthew Sellars 副教授,研究方向为基于稀土掺杂晶体的固体量子存储器的开发。其博士阶段在稀土晶体中实现了6个小时的量子存储相干时间,研究成果发表于《Nature》杂志。该成果激发人们探究:除了量子中继器,实现远程量子纠缠分布,是否有别的可选方案,比如固体量子硬盘?目前,  6个小时依然为固体中实现的最长的量子存储相干时间。 

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