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简介：在Zeeman下面的联合格子系统回答的纺纱轨道提供一个理想的平台认识到异国情调的配对的状态。著名例子从拓扑的superfluid/superconducting(tSC)状态，它在体积被豁开但是在边金属性，到Fulde-Ferrell(FF)状态(与一个一致振幅有一个调制阶段的顺序参数)并且Larkin-Ovchinnikov(LO)状态(有一个空间地变化的顺序参数振幅)。这里，我们证明有Chern的拓扑的FF状态数(C=-1)(tFF1)和拓扑的LO与C=2说(tLO2)能在Rashba纺纱轨道被稳定面对在里面飞机和out-of-planeZeeman地联合了格子系统。除不同类的tSC状态以外，面对一块弱在里面飞机Zeeman地，二个拓扑的英国计算机学会阶段可以远离一半充满和C=与C=-1(tBCS1)出现2(半充满附近的tBCS2)。我们为tFF1和tLO1,2状态为FF和LO状态，在不同类的tSC状态之中的拓扑的进化，和不同重要Chern数字显示出象顺序参数的不同空间侧面那样的吸引人的效果，它对格子系统古怪。为各种各样的拓扑的阶段的全球阶段图为充满一半、做的盒子被论述。边状态以及状态系列的本地密度在2D脱衣为tSC状态被计算。

简介：Wetrytoapplyaconstituentquarkmodel(avarietychiralconstituentquarkmodel)andtheresonatinggroupapproachforthemulti-quarkproblemstocomputetheeffectivepotentialbetweentheNN-inS-wave(thequarksinthenucleonsNandN-,andthetwonucleonsrelativelyaswell,areinSwave)soastoseethepossibilityiftheremaybeatightboundstateofsixquarksasindicatedbyastrongenhancementatthresholdofpp-inJ/ψandBdecays.TheeffectivepotentialwhichweobtainintermsofthemodelandapproachshowsiftheexperimentalenhancementisreallycausedbyatightS-waveboundstateofsixquarks,thenthequantumnumberoftheboundstateisverylikelytobeI=1,JPC=0-+.

简介：ThispaperconstructstheinteractionpotentialoftheSH(X2Π)radicalbyusingthecoupled-clustersinglesdoubles-approximate-triplestheorycombiningthecorrelation-consistentquintuplebasissetaugmentedwiththediffusefunctions,aug-cc-pV5Z,inthevalencerange.Employingthepotential,itaccuratelydeterminesthespectroscopicparameters.ThepresentDe,Re,ωe,ωeχe,αeandBevaluesareof3.7767eV,0.13424nm,2699.846cm?1,47.7055cm-1,0.2639cm-1and9.4414cm-1,respectively,whichareinexcellentagreementwiththoseobtainedfromthemeasurements.Atotalof19vibrationalstateshasbeenfoundwhenJ=0bysolvingtheradialSchrdingerequationofnuclearmotion.Thecompletevibrationallevels,classicalturningpoints,initialrotationandcentrifugaldistortionconstantswhenJ=0arereportedforthefirsttime,whichareingoodaccordwiththeexperimentalresults.Thetotalandvariouspartial-wavecrosssectionsarecomputedfortheelasticcollisionsofsulfurandhydrogenintheirgroundstatesatlowtemperatureswhentwoatomsapproacheachotheralongtheSH(X2Π)potentialenergycurve.Overtheimpactenergyrangefrom1.0×10-11to1.0×10-4a.u.,eightshaperesonanceshavebeenfoundinthetotalelasticcrosssections.Foreachshaperesonance,theresonantenergyisaccuratelycalculated.Carefulinvestigationshavepointedoutthattheseresonancesresultfromthel=0,1,2,3,4,6,7,8partial-wavecontributions.

简介：

简介：Thispaperproposesanexperimentallyfeasibleschemeforimplementingquantumdensecodingoftrapped-ionsystemindecoherence-freestates.Asthephasechangesduetotimeevolutionofcomponentswithdifferenteigenenergiesofquantumsuperpositionarecompletelyfrozen,quantumdensecodingbasedonthismodelwouldbeperfect.TheschemeisinsensitivetoheatingofvibrationalmodeandBellstatescanbeexactlydistinguishedviadetectingtheionicstate.

简介：我们建议为多国参加的ionicGreenberger-Horne-Zeilinger(GHZ)的产生的一个计划仅仅由single-qubit说大小。我们的计划不需要不仅连接大小而且避免同步的困难thetwo的到达时间散布了光子，它被以前的计划面对。因此，我们的entanglementgeneration计划能基于原子干扰inexperiment比计划更容易被实现。

简介：Entangledphotonsarethefundamentalresourceinquantuminformationprocessing.Howtoproducethemefficientlyhasalwaysbeenamatterofconcern.HereweproposeanewwaytoproducecorrelatedphotonsefficientlyfrommonolayerWS2basedonboundstatesinthecontinuum(BICs).TheBICsofradiationmodesinthemonolayerWS2arerealizedbydesigningthephotoniccrystalslab-WS2-slabstructure.Thegenerationefficiencyofcorrelatedphotonpairsfromsuchastructurehasbeenstudiedbyusingarigorousquantummodelofspontaneousparametricdown-conversionwiththeplanewaveexpansionmethod.ItisfoundthatthegenerationefficiencyofcorrelatedphotonpairsisgreatlyimprovedifthesignalandidlerfieldsarelocatedattheBICsdeterminedbytheinversescatteringmatrixofthestructure.Thisisincontrasttotheparametricdown-conversionprocessfortheenhancedgenerationofnonlinearwavesifthepumpfieldislocatedattheBICsdeterminedbythescatteringmatrixofthestructure.Thegenerationrateofthecorrelatedphotonpairscanbeimprovedby7ordersofmagnitudeinsomedesignedstructures.Thegeneratedquantumsignalsaresensitivetothewavelengthandexhibitnarrowedrelativelinewidth,whichisverybeneficialforquantuminformationprocessing.

简介：Lifetimemeasurementsoflow-lyingexcitedstatesin87Zrand87Nbhavebeenperformedviaandcoincidences.The124MeV32SbeamwasdeliveredfromtheSector-FocusingCyclotron(SFC)oftheHeavyIonR-esearchFacilityinLanzhou(HIRFL).Theparentnuclei87Nband87Mowereproducedbytherespectivereactions58Ni(32S,3p)and58Ni(32S,2p1n),atabeamenergy100MeVthroughthe8mAldegrader.

简介：我们为创造在在超导的流动qubit附近放的二个分开的氮空缺中心旋转整体之间的宏观的纠缠的协调状态建议一个潜在地实际的计划。通过集体磁性的联合并且在里面流动qubit的situtunability，旋转整体的任意的纠缠的协调状态能从流动qubit和旋转整体的decoherence在影响下面与高成功可能性被完成。试验性的可行性和挑战用当前可得到的技术被认为正当。

简介：我们学习配对的状态在一大部分在旋转起来和旋转下面费米子分别地被充满到s-和px-orbital乐队的地方，二部件的费密气体在一个各向异性的二维的光格子装载了的imbalanced。我们由于s和pxorbitals的乐队结构的相对倒置显示出那，在一样上在二费米子之间配对的系统帮助Brillouin地区站在一起，与有限center-of-mass动量为状态导致大稳定的政体，即，Fulde-Ferrell-Larkin-Ovchinnikov(FFLO)状态。特别地，二费密什么时候出现，在动量空间是靠近的，嵌套的效果与空间调整稳定-FFLO阶段的一种特殊类型沿着容易掘的x方向。我们在二维的飞机以内为各种各样的方面比率在吝啬地的途径以内畴划零温度的阶段图并且计算Berezinskii-Kosterlitz-Thouless(BKT)转变温度T为不同阶段的BKT。

简介：Thepotentialenergycurves(PECs)ofBOmolecule,includingΣ+andΠsymmetrieswithdoubletspinmultiplicities,areobtainedemployingmulti-referenceconfigurationinteraction(MRCI)methodandDunning'scorrelationconsistentbasissets.Theanalyticalpotentialenergyfunctions(APEFs)arefittedusingtheMurrell-Sorbie(MS)functionandtheleastsquaremethod.BasedonthePECs,thespectroscopicconstantsofthestateshavebeendeterminedandcomparedwiththetheoreticalandexperimentalresultsavailabletoaffirmtheaccuracyandliabilityofthecalculations.Theroot-mean-square(RMS)errorsbetweenthefittedresultsandtheabinitiovaluesaretoolittleincomparisonwiththechemicalaccuracy(349.755cm-1).ItisshownthatthepresentAPEFsareaccurateandcandisplaytheinteractionbetweentheatomswell.ThepresentAPEFscanbeusedtoconstructmorecomplicatedAPEFordosomedynamicinvestigations.

简介：Thispaperobtainsaccuratevibrationalspectroscopicconstantsandfullvibrationalenergyspectrumbythealgebraicmethod(AM)forsomeelectronicstatesofhalogendiatomicmolecules.MotivatedbytherecentsuccessofobtainingthedissociationenergiesofLi2moleculebyusinganewanalyticalformula,itfurtherextendstheformulatostudythedissociationenergiesofhalogendiatomicmolecules.TheresultsshowthattheAMspectrumandthetheoreticaldissociationenergiesagreewellwithRKRdataandexperimentaldatarespectively.

简介：

简介：Weinvestigatetheresonantinteractionofaweakgravitationalwavewithamicrowavebeaminacouplingelectromagneticsystem,whichconsistsofaGaussianbeamwithdoublepolarizedtransverseelectricmodes,astaticmagneticfieldandfractalmembranes.Wefindthatunderthesynchroresonancecondition,ahighfrequencygravitationalwaveinamplitude10^-30andfrequency3GHzmayproducetheperturbativephotonfluxof2.15×10s^-1inasurfaceof10^-2m^2.Theperturbativephotonfluxcanbepumpedoutfromthebackgroundphotonfluxesandonemayobtaintheamplifiedsignalphotonfluxof2.15×10^4s^-1bycascadefractalmembranes.Itisworthstudyingthiseffectforthedetectionofhigh-frequencyrelicgravitationalwavesinquintessentialinflationarymodelsandthehigh-frequencygravitationalwavesexpectedbypossiblelaboratoryschemes.

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简介：Background:Motorcompetenceandhealth-relatedfitnessareimportantcomponentsforthedevelopmentandmaintenanceofahealthylifestyleinchildren.Thisstudyexaminedcross-culturalperformancesonmotorcompetenceandhealth-relatedfitnessbetweenPortugueseandU.S.children.Methods:Portuguese(n=508;10.14±2.13years,mean±SD)andU.S.(n=710;9.48±1.62years)childrenperformedtestsofcardiorespiratoryfitness(ProgressiveAerobicCardiovascularEnduranceRun),upperbodystrength(handgrip),locomotorskillperformance(standinglongjump),andobjectprojectionskillperformance(throwingandkicking).PortugueseandU.S.childrenweredividedinto2agegroups(6à9and10à13years)fordataanalysispurposes.Atwoàfactoroneàwayanalysisofcovariance(ANOVA)wasconductedwiththeProgressiveAerobicCardiovascularEnduranceRun,handgrip,standinglongjumpscores,kicking,andthrowingspeed(km/h)asdependentvariables.Results:ResultsindicatedthatPortuguesechildren,irrespectiveofsex,presentedbetterperformancesinlocomotorandcardiorespiratoryperformance(standinglongjumpandProgressiveAerobicCardiovascularEnduranceRun)thanU.S.childreninbothagebands.U.S.childrenoutperformedPortuguesechildrenduringthrowingandhandgriptests.Kickingtestspresentedgenderdifferences:PortugueseboysandU.S.girlsoutperformedtheirinternationallymatchedcounterparts.Conclusion:Culturaldifferencesinphysicaleducationcurriculaandsportsparticipationmayimpactdifferencesinmotorcompetenceandfitnessdevelopmentinthesecountries.

简介：Therelativisticproblemofspin-1/2fermionssubjecttovectorhyperbolic(kink-like)potential(~tanhkx)isinvestigatedbyusingtheparametricNikiforov-Uvarovmethod.TheenergyeigenvalueequationandthecorrespondingnormalizedwavefunctionsareobtainedintermsoftheJacobipolynomialsintwocases.

简介：真正的志愿精神是志愿，不为报酬，是利他。志愿服务几乎是每个文明社会不可缺少的一部分。近些年来，“志愿者”一词风行全球，志愿服务活动也逐渐在全球各地广泛开展起来，各种大型活动中都有志愿者的身影，特别是大学生志愿者的出色表现给人们留下了极其深刻的印象，也向世人展示了当代大学生的风采。