記者3月27日從中國科學技術大學獲悉，該校郭光燦院士團隊李傳鋒

、許金時、孫(sun)凱(kai)等(deng)人(ren)對(dui)多(duo)體(ti)量(liang)子(zi)導(dao)引(yin)的(de)關(guan)係(xi)結(jie)構(gou)進(jin)行(xing)了(le)實(shi)驗(yan)研(yan)究(jiu)，首(shou)次(ci)觀(guan)測(ce)到(dao)多(duo)體(ti)量(liang)子(zi)導(dao)引(yin)的(de)非(fei)單(dan)配(pei)性(xing)共(gong)享(xiang)關(guan)係(xi)

，即(ji)其(qi)中(zhong)一(yi)方(fang)的(de)量(liang)子(zi)態(tai)可(ke)以(yi)被(bei)另(ling)外(wai)兩(liang)方(fang)同(tong)時(shi)導(dao)引(yin)。這(zhe)項(xiang)研(yan)究(jiu)成(cheng)果(guo)日(ri)前(qian)發(fa)表(biao)在(zai)國(guo)際(ji)物(wu)理(li)學(xue)期(qi)刊(kan)《物理評論快報》上。

liangzidaoyinmiaoshuleyigelizitongguojuyuceliangyingxianglingyigeliziliangzitaidenengli。zuoweiyizhongliangzifeijuyuxianxiang
，liangzidaoyinyongyoudutedefeiduichengxingzhi
，nengjinyibushixiandanxiangliangzidaoyin
，jiyifangkeyidaoyinlingyifang
，fanguolaiquebuxing。zaiduotiliangzidaoyindeyanjiuzhong，danpeixingguanxihuixianzhiliangzidaoyinzaigetizhijiandefenxiangnengli
，shideyifangbunengtongshibeiqitacanyufangdaoyin。lilunyanjiubiaoming，zaizengjiaceliangfangxiangdeqingkuangxia

，duotiliangzidaoyinhuichuxianweibeidanpeixingdexianxiang，zhanshichuduotizhijianfengfudedaoyingongxiangguanxijiegou。weileyanzhengzhezhongfeidanpeixinggongxiangguanxi，xuyaonenggouduiduotiliangzixitongjinxingrenyiceliang
，zhejiuyaoqiuzhibeijuyougaobaozhendudeduotijiuchanliangzibitexitong。

在前期研究基礎上
，研究組進一步利用光子的偏振、路徑和軌道角動量三個自由度，構建了三量子比特係統，製備了一係列的三體糾纏態，平均保真度達到96%。通(tong)過(guo)拓(tuo)展(zhan)量(liang)子(zi)導(dao)引(yin)的(de)不(bu)確(que)定(ding)關(guan)係(xi)判(pan)據(ju)，研(yan)究(jiu)者(zhe)研(yan)究(jiu)了(le)多(duo)體(ti)量(liang)子(zi)導(dao)引(yin)的(de)非(fei)單(dan)配(pei)性(xing)共(gong)享(xiang)關(guan)係(xi)。實(shi)驗(yan)結(jie)果(guo)表(biao)明(ming)，在(zai)三(san)體(ti)量(liang)子(zi)係(xi)統(tong)中(zhong)
，一(yi)方(fang)的(de)量(liang)子(zi)態(tai)可(ke)以(yi)被(bei)另(ling)外(wai)兩(liang)方(fang)同(tong)時(shi)導(dao)引(yin)，這(zhe)種(zhong)現(xian)象(xiang)違(wei)背(bei)了(le)傳(chuan)統(tong)的(de)單(dan)配(pei)性(xing)關(guan)係(xi)，證(zheng)實(shi)了(le)多(duo)體(ti)量(liang)子(zi)導(dao)引(yin)的(de)共(gong)享(xiang)性(xing)質(zhi)。研(yan)究(jiu)組(zu)通(tong)過(guo)對(dui)處(chu)於(yu)W態（一類多體糾纏態）desantixitongjinxinglechongfendefenxi，zhanshilebutongdeliangzidaoyinjiagou。liyongsuozhengshideduotiliangzidaoyinfeidanpeixingdegongxiangguanxi，yanjiuzhejinyibushixianlesantizhenjiuchandeshiyanyanzheng。yuchangguifangfaxiangduibi，zhezhongjiancefangfazhixuyaogengshaodeceliangziyuan，zhanxianleqigaoxiaoxing。

這項成果加深了對量子導引物理概念的理解，為基於量子導引單配性的信息協議提供了全麵的分析視角，在多用戶量子通信、量子網絡的搭建
、多體糾纏檢測中都具有重要的應用前景。