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我国在超冷原子量子计较与量子摹拟范畴取得首要停顿 ——中国科大在超冷原子光晶格中完成大范围高保真度量子胶葛对的同步制备

宣布时候:2020-06-22来历于:中国迷信手艺大学

ZHONGGUOMIXINSHOUYIDAXUEPANJIANWEI、YUANZHENSHENGDENGZAICHAOLENGYUANZILIANGZIJIJIAOHEMONIYANTAOZHONGQUDESHOUYAOTINGDUN。TAMENZAISHIJISHANGTICHUBINGCHANGSHIWANCHENGYUANZISHENDULENGQUEXINJIZHIDEGENBENSHANG,ZAIGUANGJINGGEZHONGCHUCIWANCHENGLE1250DUIYUANZIGAOBAOZHENDUJIAOGETAIDETONGBUZHIBEI,WEIJIYUCHAOLENGYUANZIGUANGJINGGEDEFANWEIHUALIANGZIJIJIAOYUMONIDIANJILEGENBEN。BEIJINGSHIHOU6YUE19RI,GUOJIWENMINGXUESHUQIKAN《MIXIN》ZAZHIYI“First Release”QINGSHIZAIXIANXUANBULEGAIYANTAOGONGXIAO。

JIYULIANGZILIXUEDEGENJIDAOLI,LIANGZIJIJIAOHEMONIBEIYIWEISHIHOUMOERSHIQIBIANCEGAOSUXINXICHUZHIDEQINGFUXINGSHOUYI,WUWANGCHUZHIZHURUDIWENCHAODAOJIZHIMONI、ANMAPOJIEDENGYANZHONGMIXINHESHOUYITIMU。LIANGZIJIAOGESHILIANGZIJIJIAODEJIAODIANZIBEN,LIANGZIJIJIAODECAINENGJIANGSUIJIAOGEBITESHULIANGDEZENGJIACHENGZHISHUZENGJIA。SHIYI,DAFANWEIJIAOGETAIDEZHIBEI、ZHANGLIANGHEXIANGGUANCAOKONGSHIGAIYANTAOFANCHOUDEJIAODIANTIMU。WANCHENGDAFANWEIJIAOGETAIDEFANSHILUZISHI,XIANTONGBUZHIBEIDAPIJIAOGELIZIDUI,ERHOUJINGYOUJINCHENGLIANGZILUOJIMENCAOZONGJIANGQIPILIANGOUCHENGDUOLIZIJIAOGE。SHIYI,GAOPINDEJIAOGELIZIDUIDETONGBUZHIBEISHIWANCHENGDAFANWEIJIAOGETAIDESHOUYAOQIANTI。SHIJINIANLAI,YIYOULIANGDUOCHANGSHIZAIGUANGZI、RUANJINLIZI、ZHONGXINGYUANZIDENGTIXIZHONGYANSHILECAOKONGDUOGELIANGZIBITETINGZHIXINXICHUZHIDEKEXINGXING。KESHI,YIWANGDERENWUZHONG,SHOUXIANYUJIAOGEDUIDEPINDEHELIANGZILUOJIMENDECAOKONGJINGDU,JINCHAORENMENSUONENGZHIBEIDEZUIDAJIAOGETAIJIANGESHIYONGHUADELIANGZIJIJIAOHEMONISUOXUDEJIAOGEBITESHUHEBAOZHENDULINGYOUHENDACHAYI。

ZAIWANCHENGLIANGZIBITEDEHAOFANWULITIXIZHONG,GUANGJINGGECHAOLENGYUANZIBITEHECHAODAOBITEJUYOUJIECHUDEKESHENGKUODAXINGHEGAOJINGDUDELIANGZICAOKONGXING,SHIZUIYOUNENGGOULINGXIANWANCHENGFANWEIHUALIANGZIJIAOGEDETIXI。ZI2010NIANQITOU,ZHONGGUOKEDAYANTAOTUANDUIYUDEGUOHAIDEBAODAXUEXIEZUO,DUIJIYUCHAOLENGYUANZIGUANGJINGGEDEKETUOZHANLIANGZIXINXICHUZHIZHENGKAIJIEHEGONGGUAN。ZAIHOUQIDEYANTAOZHONG,GAITUANDUILIYONGRb-87CHAOLENGYUANZIZHIBEILE600DUODUIBAOZHENDUWEI79%DECHAOLENGYUANZIJIAOGETAI[Nature Physics 12, 783 (2016)];BINGLIYONGGAITIXIDIAOKONGTEBIEDEHUANHUHUANBICIGANHUAFASHENGSITIJIAOGETAI,MONILETUOPULIANGZIJIJIAOZHONGDESIYIZIJIQIMOZI[Nature Physics 13, 1195 (2017)]。YISHANGDECHANGSHIZHONG,YINWEIJINGGEZHONGYUANZIDEWENDUPIANGAO(YUE10 nK),SHIDEJINGGEZHONGYUANZITIANBUQUEDIANDAYU10%,ZHEIDUIJIAOGEYUANZIDUIPILIANGOUCHENGGENGDADEDUOYUANZIJIAOGETAIHEJINSHENGJIAOGEBAOZHENDUYOUHENDADEYINGXIANG。

ZAIZHEIXIANGYANTAOZHONG,GAITUANDUICHUCITICHULELIYONGJIAOZHISHIJINGGEBUJUJIANGCHUZAIJUEYUANTAIDELENGYUANZIJINPAODAOCHAOLIUTAIZHONGDEXINZHILENGJIZHI,JINGYOUJINCHENGJUEYUANTAIHECHAOLIUTAIZHIJIANGAOXIAOLIDEYUANZIHESHANGDEHUHUAN,SHITIXIZHONGDERELIANGSHOUYAOYICHAOLIUTAIDINENGJIQIDEQINGSHICUNCHU,ZAIYONGQIEQUEDEDIAOKONGSHOUWANJIANGCHAOLIUTAIYICHU,CONGERQUDEDISHANGDEWANSHANTIANBUJINGGE。GAICHANGSHIWANCHENGLEZHEIYIZHILENGJINCHENG,ZHILENGHOUSHITIXIDESHANGXIAJIANGLE65BEI,DAODALECHUANGJIZAIDEDISHANG,SHIDEJINGGEZHONGYUANZITIANBULVDAFUJINBUDAO99.9%YISHANG。ZAICIGENBENSHANG,GAITUANDUIKAIPILELIANGYUANZIBITEGAOSUJIAOGEMEN,QUDELEJIAOGEBAOZHENDUWEI99.3%DE1250DUIJIAOGEYUANZI。

“”

             光晶格中原子冷却的表示图。将处在绝缘态的样品原子(蓝绿色球)交织浸泡处处在超流态的情况原子(白色球)中,这两种状况之间高效力的原子和熵的互换,致使有能隙的绝缘态不易被激起,体系中的热量首要以超流态低能激起的情势存储。

 

《MIXIN》ZAZHIDESHENGAORENDUIGAIRENWUSHOUYUGAODUPINGGU:“TAMENZAIYUANZIBITEZHONGWANCHENGLEWOSUOZHIDEZUIDIDESHANG,BINGQIESHIZAIRUSIDADE(1WANGEYUANZI)TIXIZHONG;JINYIBU,TAMENBAODAOLEWOSUOZHIDEZHONGXINGYUANZIZHONGDEZUIGAOBAOZHENDULIANGBITELIANGZIMEN(They show the lowest entropy/particle that I am aware of for an atomic register, no less one of this size (10^4); further, they report the highest fidelity two-qubit gate that I am aware of for neutral atoms 0.993(1));” “KAIPIXINDEJINGGELIANGZIQITIZHILENGSHOUYI,SHIGAIXUEJIEWEILEYANTAOXINWUTAIHEZHIZULIANGZIXINXICHUZHIXUYAODESHOUYAOFANGZHEN。YOUJIANYUCI,WOYIWEITAMENWANCHENGRUSIDADESHANGJIANSHIYIGECHONGPO……(Developing new cooling techniques for quantum gases in optical lattices is an important goal for the community to access novel states of matter and for quantum information applications. In that sense, I consider the impressive entropy reduction factor demonstrated here a breakthrough)。”

ZAIGAIYANTAORENWUDEGENBENSHANG,YANTAOTUANDUIJIANGJINGYOUJINCHENGPILIANDUODUIJIAOGEYUANZIDEFANGSHI,ZHIBEIJISHIDAOSHANGBAIGEYUANZIBITEDEJIAOGETAI,YONGYIZHANKAIDANXIANGLIANGZIJIJIAOHEPANGZAQIANGLIANXIGUANXIDUOTITIXILIANGZIMONIYANTAO。TONGSHI,GAIRENWUZHONGDEXINZHILENGSHOUYIJIANGYOUZHUYUDUICHAOLENGFEIMIZITIXIDESHENDULENGQUE,SHIDETIXIDAODAMONIDIWENCHAODAOWULIJIZHIDEKEBOWENQU。GAIYANTAOGONGXIAOJIANGJIDABIANCELIANGZIJIJIAOHEMONIFANCHOUDECHENGZHANG。

GAIYANTAORENWUHUODELEKEJIBU、GUODUTIANRANMIXINJIJINWEI、ZHONGKEYUAN、JIAODAOBUHEANHUISHENGDENGDECHENGCHI。

LUNWENLIANJIE:http://doi.org/10.1126/science.aaz6801

 

 

(HEFEIWEIBIAOZHUNWUZIMIXINGUODUYANTAOZHONGJIAN、WULIXUEYUAN、ZHONGKEYUANLIANGZIXINXIYULIANGZIKEJILIYIYANTAOYUAN、KEYANBU)


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