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中国科大在基于单光子源的量子紧密丈量方面获得主要停顿

宣布时候:2020-10-21来历于:中国迷信手艺大学

ZHONGGUOMIXINSHOUYIDAXUEPANJIANWEI、LUXIANGYANGDENGYUMEIGUOPULINSIDUNDAXUEMarlan Scully、DEGUOWEIERZIBAODAXUESven HoflingDENGXIEZUO,ZAITONGSHIJUYOUGAOCHUNDU、GAOBUKEFENBIAN、GAOXIAOLIDEDANGUANGZIYUANQIJIANSHANGCHAKANDAOQIANGDUJINSUO,WEIJIYUDANGUANGZIYUANDELIANGZIJINMIZHANGLIANGDIANJILEGENBEN。LUNWENYI“BIANJIBAOJU”QINGSHIKERIBANFAYU《WULIPIPINGKUAIBAO》。MEIGUOWULIXUEHUIPhysicsWANGZHANYI“MIANXIANGWANSHANDEDANGUANGZIYUAN”(Toward a Perfect Single-Photon Source)WEITITEDIDUIGAIRENWUZUOLEGAOLIANGBAODAO。

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DANGUANGZIYUANSHIGUANGLIANGZIXINXISHOUYIZHONGDEGUANTOUQIJIAN,BUZHINENGGOUCAOZONGYULIANGZITONGXUN、LIANGZIJIJIAO(CHUGESHIBOSEQUYANG),TONGSHIYESHILIANGZIJINMIZHANGLIANGDEZHUYAOZIBEN。LIANGZIJINMIZHANGLIANGZHONGDEYIGEZHUYAOBIAODEMUDESHIXUEJIANYINWEITANCEWUXIANLIZIERYINFADETONGJIZHANGLUO——SANLIZAOSHENG。

LIANGZIXINXIMIXINDECHENGZHANGWEIJINMIZHANGLIANGSHOUYIGONGJILEXINDEWULIZIBEN。2004NIAN,PANJIANWEIHEGONGSHIZAIGUOJISHANGCHUCIWANCHENGDUOGUANGZIJIAOGENOONTAI,YANSHILEBIDANLIZIGAO4BEIHUOLUODUDEFEIJUYUDEDEBULUOYIBOZHANG(Nature 429, 158)。ERHOU,JIYUJIAOGEDELIANGZIJINMIZHANGLIANGJISUCHENGZHANG,CIZHONG,ZHONGKEDAYANTAOZUQIANHOUYANSHILE6、8、10、12、18BEIHUOLUODUDEDEBULUOYIBOZHANG,BINGKUODADAOLENGYUANZIFANCHOU。

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JINSUOTAISHIYAYISANLIZAOSHENGDELINGWAIYILIANGZIZIBEN。LIANGZISHOUYIDECHENGZHANGSHIDECHANGSHIWULIXUEJIANENGGOUZAIHAISENBAOBUKENDINGDAOLIDEXIANDINGXIA,DIAOLIYIDUIGONGELIANG(RUDIWEIHEDONGLIANG、SHIHOUHENENGLIANGDENG)DEJUEDUIJUXI,BASUOXUZHANGLIANGDEWULILIANGBUKENDINGXINGTAIGAO。CIZHONG,YOUYILEIJINSUOTAIBEICHENGWEIQIANGDUJINSUO,NENGGOUBAGUANGZISHUFADOUXIAJIANGDAOSANLIZAOSHENGYIXIA;LINGWAIYILEIJINSUOTAIBEICHENGWEIZHENGJIAOFENLIANGJINSUO,BIFANGXIANGWEIFENLIANGDEZAOSHENGNENGGOUXIAJIANGDAOXIAOYUDIANFANXIANGGUANTAIXIANGWEIZAOSHENG。ZAIXIANSHICAOZONGZHONG,CONG2011NIANYINLIBOTANCEQILIGOQITOUCAOZONGZHURUJINSUOZHENKONGTAILAIGONGJITANCEHUOLUODU,JINBULE50%DEKETANCESHIWUSHUMU。

1979NIAN,MandelCONGSHIJISHANGYUYAN,DANGEERNENGJIXITONGDEGONGZHENYINGGUANGZHONGKECHAKANDAOQIANGDUJINSUO。SUIHOUDESHIJICHANFAZHICHU,JIANJIETANCEDUOGUANGZIYUANDEQIANGDUJINSUOXUYAOHENGAODEYINGGUANGXITONGXIAOLI。DANYINWEIGONGZHENYINGGUANGDEFASHENG、TIQUHESOUJIDENGJINCHENGZHONGDAILAIDEGUANGZISHUSANGSHI,JIANJIEGUANCHAQIANGDUJINSUOYIXIANGYILAISHIGEPANGDADETIAOXIN。

ZHONGKEDAYANTAOZUCHIJIUJINLIYUCHENGZHANGGAOPINDEDEDANGUANGZIYUAN,CHUCHUANGLEMAICHONGGONGZHENYINGGUANGFANGSHI,CAOZONGWEIQIANGOUHEJINBUDANGUANGZITIQUXIAOLI。2019NIAN,JINGYOUGUOCHENGSHUANGSEJIQI[Nature Phys. 15, 941]HEJIHUAQIANGJIHUA[Nature Photon. 13, 770]SHENGLICHULIDANGUANGZIYINWEIJIHUAXIAOHAOERZUISHAOSANGSHI50%DEMIXINKUNNAN。ZAICIGENBENSHANG,YANTAOXIAOZUCHENGZHANGLEGAOPINDEDANGUANGZIYUAN,JINGYOUGUOCHENGDUIGONGZHENYINGGUANGDEJIANJIEZHANGLIANG,ZHENGSHILE0.59 dBDEQIANGDUJINSUO,ZAIDIYIWUJINGCHUDEJINSUOLIANGDAODA3.29 dB。ZHEISHIZICONG2000NIANWANCHENGLIANGZIDIANDANGUANGZIYUANHOU,MIXINJIAJINGYOUGUOCHENG20NIANDEJINLICHUCIZAIGAIXITONGJIANJIEGUANCHADAOQIANGDUJINSUO,WEIJIYUDANGUANGZIYUANDEWUQIANTICHAOCHUDIANFANJIXIANDEJINMIZHANGLIANGDIANJILEMIXINGENBEN,YEWEIZAIJIDIGUANGGONGLVXIAJIESHUOFAGUANGQIANGDUKANDELAZHEIYIGENJIGUOJIDANYUANGONGJILEYITIAOXINDELUZI。

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GAIYANTAORENWUHUODELETIANRANMIXINJIJINWEI、KEJIBU、ZHONGKEYUAN、JIAODAOBUDENGDANYUANDECHENGCHI。

 

LUNWENLIANJIE:

MEIGUOWULIXUEHUIBAODAO:

OUMENGJILIANGYANTAOMINGMU“LIANGZIKANDELA”:

 

 

(ZHONGKEYUANLIANGZIXINXIYULIANGZIKEJILIYIYANTAOYUAN、HEFEIWEIBIAOZHUNWUZIMIXINGUODUYANTAOZHONGJIAN、KEYANBU)


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