yabo88登陆

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yabo88登陆

2020年11月18日
量子计算和量子模拟研究获重要突破:yabo88登陆在71个格点的超冷原子量子模拟器中成功求解施温格方程

yabo88denglupanjianwei、yuanzhenshengdengyudeguohaidebaodaxue、yidaliteluntuo(trento)daxuedehezuozhezaichaolengyuanziliangzijisuanhemoniyanjiuzhongqudezhongyaotupo:tamenkaifaleyizhongzhuanyongdeliangzijisuanji---71gegediandechaolengyuanziguangjinggeliangzimoniqi,duiliangzidiandonglixuefangchengshiwengemoxing(schwinger model)jinxinglechenggongmoni,tongguocaokongshufuzaiqizhongdechaolengyuanzi,congshiyanshangguancedaolejuyuguifanbubianliang,shoucishiyongweiguanliangzidiaokongshouduanzailiangziduotixitongzhongyanzhenglemiaoshudianheyudianchangguanxidegaosidingli,qudeleliyongguimohualiangzijisuanheliangzimonifangfaqiujiefuzawuliwentidezhongyaotupo。beijingshijian11yue19ri,guojizhumingxueshuqikan《ziran》zazhifabiaolegaiyanjiuchengguo。

图:一维格点Schwinger模型描述正反粒子通过电场传递相互作用,而正负粒子湮灭后转化成了电场激发。一维Hubbard模型描述光晶格中的冷原子隧穿和相互作用的过程,在特定的势阱形状下,一维Hubbard模型与Schwinger模型的群对称性相同。

guifanchanglilunshixiandaiwulixuedegenji,rumiaoshujibenlizixianghuzuoyongdeliangzidiandonglixue、biaozhunmoxingdengdoushimanzutedingqunduichengxingdeguifanchanglilun。qijinweizhi,biaozhunmoxingchengweitongyimiaoshuqiang、ruo、diancisanzhongxianghuzuoyongdezuichenggongdelilun。zaigaililundefazhanguochengzhong,yangzhenning、miersi、wenboge、feimandengkexuejiadouzuochulezhongyaodegongxian。bansuizheguifanchanglilunbangeduoshijidefazhan,kexuejiamenfaxiangezhongguifanchangfangchengqiujiedejisuanfuzadufeichanggao,duichaojijisuanjideshuzhijisuannenglixingchengleyanzhongdetiaozhan。

示意图:规范场理论描述基本粒子之间的相互作用、产生和湮灭过程,这一过程可以用晶格中超冷原子之间的相互作用及其在晶格中的排布模式来模拟。(制图石千惠梁琰)

yushi,renmentichulekaifazhuanyongliangzijisuanji---liangzimoniqi---goujianjinggeguifanchangmoxing,zaishiyanzhongtongguoduimoniqidegezhongcanshudejingzhundiaokongzhibeimubiaoliangziwutai,bingyongliangziqitixianweijingchengxiangdengshouduan,guancesuomonideliangziwutaidexiangbian、liangziguanliandengxingzhi,huodedaiyanjiuguifanchangmoxingdegezhongwulixingzhi。zaiguojishang,mapuliangziguangxuesuo、sulishilianbangligongxueyuan、hafodaxue、yabo88denglu、yinsibulukedaxuedengjigoudeyanjiurenyuanyongchaolengyuanzi、qiujinlizidengtixiduiguifanchangmoxingdejibendanyuanjinxinglechubudeliangzimoniyanjiu。danshi,zheixieshiyanzhongyaomeshitixitaixiao(jinyou2gedao4gelizi)bujubeijuyuguifanbubianxing;yaomewufatongshichanshengguifanchanghewuzhichang,gengbunengyanjiuzheiliangzhongchangzhijiandexianghuzuoyonghezhuanhua。yinci,ciqiandeyanjiuzhongdouwufaguanceguifanchanglilunzuijibendetexing——juyuguifanbubianxing。

weilejiejueyiwangdeliangzimoniqizhongxianggandiaokongdelizishutaishaohewufatongshichanshengguifanchang、wuzhichangdelianggezhuyaowenti,yabo88dengludeyanjiutuanduikaifaledutedezixuanyilaichaojingge、xianweijingxishouchengxiang、lizishufenbiantancedengliangzidiaokongheceliangjishu,zaichaolengyuanziliangzimoniqizhongshouxianshixianleduiz2guifanduichengxingdeguifanchangmoxingdanyuanhamidunliangdeyanjiu[nature physics 13, 1195 (2017)];youtichubingshixianleguangjinggezhongyuanzideshenduzhileng,jiejueleliangzimoniqiwenduguogaoquexianguoduodewenti,shiyanzhibeilejinbaigeyuanzijibiedeguimohualiangzimoniqi[science 369, 550 (2020)];zaiyishangyanjiudejichushang,tongguoshiyanhelilunjiehe,gailianheyanjiutuanduizhaodaoleschwingermoxingzhongzhengfulizi、dianchangyuhubbardmoxingzhongyuanzizaigedianshangdegezhongzhanjugouxingzhijiandeyingsheguanxi,tongguoshiyanshangdejingquediaokong,zai71gegediandechaolengyuanziliangzimoniqishangmonileyiweigediantixideschwingermoxing,shoucimonileguifanchangyuwuzhichangzhijiandexianghuzuoyonghezhuanhua、bingyouciguancedaolejuyuguifanbubianxing(yanzhenglegaosidingli),zaishiyongguimohuadeliangzimoniqiqiujiefuzawuliwentidedaolushangqudeletupoxingdejinzhan。

《自然》杂志的审稿人对此工作给予了高度评价(评审意见中的peer review file):认为这项工作“是量子模拟方法研究晶格规范场的一个重要的里程碑……该工作同时模拟了物质场和规范场,是相关交叉学科研究的里程碑。它将受到多个学科领域的关注,从基本粒子、晶格规范场、和量子信息方面的理论学家,到原子分子光学、固态物理领域的实验物理学家.”;“迈出了模拟晶格规范场理论的真正一步:从实现量子模拟器的模块到对特定模型的完全模拟。”

yabo88登陆zaishangshuxiangguangongzuodejichushang,gaituanduijiangjinyibushiyongliangzimonidefangfayanjiujuyouqitaqunduichengxingde、genggaokongjianweidudeguifanchangmoxing,bingketuiguangdaoyuanlipinghengtaideguifanchangxitong,yanjiuzhenkongshuaibian、yutuopujiaoduxiangguandedonglixueguochengdengzhongyaowulinanti。jinnianlai,panjianweiyanjiutuanduizailiyongchaolengyuanzichanshengdaguimoliangzijiuchantaijinxingliangzijisuan、goujiantuopuliangzijisuanxitong、moniningjutaichaoliumoxing、monirengongguifanchang、kaizhanchaolenghuaxueyanjiudengfangmianqudeleyixilieyuanchuangxingdekeyanchengguo,yizainature(1)、science(3)、nature physics(5)、heprl(8)dengkexueqikanshangfabiaolunwen17pian,chengweiguojishangchaolengyuanziliangzijisuanheliangzimonilingyudelingpaotuanduizhiyi。

gaiyanjiugongzuodedaolekejibu、guojiazirankexuejijinwei、zhongkeyuan、jiaoyubuheanhuishengdengdezhichi。

lunwenlianjie:

observation of gauge invariance in a 71-site bose–hubbard quantum simulator

bing yang, hui sun, robert ott, han-yi wang, torsten v. zache, jad c. halimeh, zhen-sheng yuan, philipp hauke, & jian-wei pan, nature, http:// doi.org/10.1038/s41586-020-2910-8


(hefeiweichiduwuzhikexueguojiayanjiuzhongxin、wulixueyuan、zhongkeyuanliangzixinxiyuliangzikejichuangxinyanjiuyuan、keyanbu)

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