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Quantum Interference in Jet Substructure from Spinning Gluons

2021-03-19

HaoChen,IanMoult,andHuaXingZhuCollimatedspraysofhadrons,calledjets,areanemergentphenomenonofquantumchromodynamics(QCD)atcolliderexperiments,whosedetailedinternalstructureencodesvaluableinformationabouttheinteractionsofhighenergyquarksandgluonsandtheirconfinementintocolor-neutralhadrons.Theflowofenergywithinjetsischaracterizedbycorrelationfunctionsofenergyflowoperators,withthethree-pointcorrelatorbeingthefirstcorrelatorwithnontrivialshapedependence,playingaspecialroleinunravelingthedynamicsofQCD.
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Observation of an electronic order along [110] direction in FeSe

2021-03-17

Observationofanelectronicorderalong[110]directioninFeSeKunliangBu,WenhaoZhang,YingFei,YuanZheng,FangzhouAi,ZongxiuWu,QisiWang,HongliangWo,JunZhao,andYiYinElectronicorderedstateshavebeenextensivelystudiediniron-basedsuperconductors.Here,weapplyscanningtunnelingmicroscopy(STM)toprobetheintrinsicorderedstatesinbulkFeSe.DifferentfromthetraditionalSTMmeasurement,wemeasuredtheintrinsicelectronicpropertiesofFeSeinalargeenergyscale.ALawer-Fujitaalgorithmisappliedtoremovethethermaldrift,andelectronicdens
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Localized 4f-electrons in the quantum critical heavy fermion ferromagnet CeRh6Ge4

2021-03-15

AnWang,FengDu,YongjunZhang,DavidGraf,BinShen,YeChen,YangLiu,MichaelSmidman,ChaoCao,FrankSteglich,HuiqiuYuanFerromagneticquantumcriticalpointswerepredictedtobeprohibitedincleanitinerantferromagneticsystems,yetsuchaphenomenonwasrecentlyrevealedinCeRh6Ge4,wheretheCurietemperaturecanbecontinuouslysuppressedtozerounderamoderatehydrostaticpressure.HerewereporttheobservationofquantumoscillationsinCeRh6Ge4frommeasurementsusingthecantileverandtunnel-diodeoscillatormethodsinfieldsupto45T,clearlydemonstrat
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Flat-Band Localization in Creutz Superradiance Lattices

2021-03-12

YanyanHe,RuosongMao,HanCai,Jun-XiangZhang,YongqiangLi,LuqiYuan,Shi-YaoZhu,andDa-WeiWangFlatbandsplayanimportantroleindiffraction-freephotonicsandattractfundamentalinterestinmany-bodyphysics.Herewereporttheengineeringofflat-bandlocalizationofcollectiveexcitedstatesofatomsinCreutzsuperradiancelatticeswithtunablesyntheticgaugefields.MagnitudesandphasesofthelatticehoppingcoefficientscanbeindependentlytunedtocontrolthestatecomponentsoftheflatbandandtheAharonov-Bohmphases.Wecanselectivelyexcitetheflat
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Scalable Evaluation of Quantum-Circuit Error Loss Using Clifford Sampling

2021-02-25

ZhenWang,YanzhuChen,ZixuanSong,DayueQin,HekangLi,QiujiangGuo,H.Wang,ChaoSong,andYingLiAmajorchallengeindevelopingquantumcomputingtechnologiesistoaccomplishhighprecisiontasksbyutilizingmultiplexoptimizationapproaches,onboththephysicalsystemandalgorithmlevels.Lossfunctionsassessingtheoverallperformanceofquantumcircuitscanprovidethefoundationformanyoptimizationtechniques.InthisLetter,weusethequadraticerrorlossandthefinal-statefidelitylosstocharacterizequantumcircuits.Wefindthatthedistributionofcomp
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Quench Dynamics of Collective Modes in Fractional Quantum Hall Bilayers

2021-02-19

ZhaoLiu,AjitC.Balram,ZlatkoPapić,andAndreyGromovWeintroducedifferenttypesofquenchestoprobethenonequilibriumdynamicsandmultiplecollectivemodesofbilayerfractionalquantumHallstates.Weshowthatapplyinganelectricfieldinonelayerinducesoscillationsofaspin-1degreeoffreedom,whosefrequencymatchesthelong-wavelengthlimitofthedipolemode.Ontheotherhand,oscillationsofthelong-wavelengthlimitofthequadrupolemode,i.e.,thespin-2graviton,aswellasthecombinationoftwospin-1states,canbeactivatedbyasuddenchangeofbandmassa
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Topological phases of quantized light

2021-01-19

HanCai,Da-WeiWangTopologicalphotonicsisanemergingresearchareathatfocusesonthetopologicalstatesofclassicallight.Herewerevealthetopologicalphasesthatareintrinsictothequantumnatureoflight,i.e.solelyrelatedtothequantizedFockstatesandtheinhomogeneouscouplingstrengthsbetweenthem.TheHamiltonianoftwocavitiescoupledwithatwo-levelatomisanintrinsicone-dimensionalSu-Schriefer-HeegermodelofFockstates.Byaddinganothercavity,theFock-statelatticeisextendedtotwodimensionswithahoneycombstructure,wherethestrainduet
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Two-Dimensional Superconductivity at the LaAlO 3 / KTaO 3 ( 110 ) Heterointerface

2021-01-18

ZhengChen,ZhongranLiu,YanqiuSun,XiaoxinChen,YuanLiu,HuiZhang,HekangLi,MengZhang,SiyuanHong,TianshuangRen,ChaoZhang,HeTian,YiZhou,JirongSun,andYanwuXieWereportontheobservationofaTc∼0.9KsuperconductivityattheinterfacebetweenLaAlO3filmandthe5dtransitionmetaloxideKTaO3(110)singlecrystal.Theinterfaceshowsalargeanisotropyoftheuppercriticalfield,anditssuperconductingtransitionisconsistentwithaBerezinskii-Kosterlitz-Thoulesstransition.Bothfactssuggestthatthesuperconductivityistwo-dimensional(2D)innature
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Gate-Tunable Fractional Chern Insulators in Twisted Double Bilayer Graphene

2021-01-12

ZhaoLiu,AhmedAbouelkomsan,andEmilJ.BergholtzWepredicttwisteddoublebilayergraphenetobeaversatileplatformfortherealizationoffractionalCherninsulatorsreadilytargetedbytuningthegatepotentialandthetwistangle.Remarkably,thesetopologicallyorderedstatesofmatter,includingspinsingletHalperinstatesandspinpolarizedstatesinChernnumberC=1andC=2bands,occurathightemperaturesandwithouttheneedforanexternalmagneticfield.Phys.Rev.Lett.126,026801Thepublishedarticleisavailableathttp://journals-aps-org-s.webvpn.zju.ed
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The anomalies and criticality of liquid water

2020-10-26

RuiShiandHajimeTanakaTheoriginofwater’sanomalieshasbeenamatteroflong-standingdebate.Atwo-statemodel,datingbacktoRöntgen,reliesonthedynamicalcoexistenceoftwotypesoflocalstructures—locallyfavoredtetrahedralstructure(LFTS)anddisorderednormal-liquidstructure(DNLS)—inliquidwater.Phenomenologically,thismodelnotonlyexplainswater’sthermodynamicanomaliesbutalsocanrationalizetheexistenceofaliquid–liquidcriticalpoint(LLCP)ifthereisacooperativeformationofLFTS.Werecentlyfounddirectevidenceforthecoexistenceof
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