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简介：Theadiabaticelectrontransportistheoreticallystudiedinazigzaggraphenenanoribbon(ZGNR)junctionwithtwotime-dependentpumpingelectricfields.BymodelingaZGNRp–njunctionandapplyingtheKeldyshGreen’sfunctionmethod,wefindthatapumpedchargecurrentisflowinginthedeviceatazeroexternalbias,whichmainlycomesfromthephoton-assistedtunnelingprocessandthevalleyselectionruleinaneven-chainZGNRjunction.ThepumpedchargecurrentanditsONandOFFstatescanbeefficientlymodulatedbychangingthesystemparameterssuchasthepumpingfrequency,thepumpingphasedifference,andtheFermilevel.AferromagneticZGNRdeviceisalsostudiedtogenerateapurespincurrentandafullypolarizedspincurrentduetothecombinedspinpumpeffectandthevalleyvalveeffect.Ourfindingmightpavethewaytomanipulatethedegreeoffreedomofelectronsinagraphene-basedelectronicdevice.

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简介：基于这个概念断热不变，到统一对称的不安和为相对论的哈密尔顿系统的断热的invariants被学习。到为系统的统一对称的不安的定义被介绍，并且到统一对称的不安的标准被给。同时，Noether断热的invariants，概括Hojman断热的invariants，和为使不安的系统的Mei断热的invariants被获得。

简介：基于这个概念断热不变，不安和为nonholonomic的Mei对称的断热的invariants机械系统被学习。为没有不安的系统的Mei对称的准确invariants被给。到Meisymmetry的不安被讨论，为使不安的系统的Mei对称的断热的invariants被获得。

简介：Basedontheconceptofadiabaticinvariant,theperturbationtoLie-MeisymmetryandadiabaticinvariantsforBirkhoffiansystemsarestudied.ThedefinitionoftheperturbationtoLie-Meisymmetryforthesystemispresented,andthecriterionoftheperturbationtoLie-Meisymmetryisgiven.Meanwhile,theHojmanadiabaticinvariantsandtheMeiadiabaticinvariantsfortheperturbedsystemareobtained.

简介：Stark-chirpedrapidadiabaticpassage(SCRAP)isanimportanttechniqueusedforcoherentquantumcontrols.Inthispaperweinvestigatehowthepractically-existingdissipationofthesysteminfluencesontheefficiencyofthepassage,andthusthefidelitiesoftheSCRAP-basedquantumgates.Withflux-biasedJosephsonqubitsasaspecificalexample,ourresultsshowclearlythattheefficiencyofthelogicgatesimplementedbySCRAParerobustagainsttheweakdissipation.Theinfluenceduetothenon-adiabtictransitionsbetweentheadiabaticpassagesiscomparativelysignificantlysmall.Therefore,theSCRAP-basedlogicgatesshouldbefeasiblefortherealisticphysicalsystemswithnoises.

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简介：Athree-dimensional(3D)globaladiabaticspectralprimitiveequationmodelhasbeendesigned.Themainfeaturesareasfollows.(1)AdoptionofsphericalharmonicsandTschebyscheffpolynomialsasthebasisfunctionsinthehorizontalandverticalrespectively,buttheunknownsinthespectralequationsaretwo-dimensional;(2)Inclusionofthetropopause,whichmayvarywithtimeandspace;(3)Suggestionofaspectralmethodforrepresentingtheverticalstructureoftheatmosphereapplicabletotheunsmoothedprofilecase;(4)Inconsiderationofnonlinearverticalaliasingatechniqueisproposedtoavoiditandnonlinearcomputationalinstability.Basedonrealdataforecastsupto48hourshavebeenperformed.TheresultsshowthatthestatisticalverificationswiththemodelaresuperiorontheaveragetothosewiththeT42L9usedoperationallybefore1995atNMCofChinaatthesamemeanresolution.

简介：我们基于clocked传播门为一个布思编码器建议一个新式样计划断热的逻辑(CTGAL)。当时，在新式样，布思编码器的结构的复杂性被减少速度更多样地被改进。断热二是补充收益增殖率,乘法器,乘数蓄电池(MAC)而且一个图案基于CTGAL。计算机模拟结果显示设计电路让正确逻辑工作并且显著地与MAC的相比的更少的能源消耗基于互补金属氧化物半导体(互补金属氧化物半导体)逻辑。

简介：Afullsolutionoftwo-dimensionalNavier-Stokesandenergyequationwasconductednumericallytoanalyzethenaturalconvectionofthehorizontalstripwithanadiabaticsubstrate.Themainfeaturesofsuchconvectionare:(i)theleadingandtrailingedgeeffect,(ii)thenon-boundarylayereffect,and(iii)thesideedgeeffect.Theresultsarecomparedwiththeboundarylayertheoryandexprimentaldata.

简介：为有单方的holonomic限制的机械系统的对称和断热的invariants的不安被学习。准确在由为有单方的限制的一个没受到干扰的系统的特殊谎言对称的Hojmanled形式不变被给。Basedon这个概念高顺序断热机械系统不变，为在小骚乱的行动下面的系统的Liesymmetries的不安被调查，并且一新断热为有单方的holonomic限制的系统不变被获得，它能是calledHojman断热不变。最后纸，一个例子被给说明结果的申请。

简介：ConsideringfullperturbationtoinfinitesimalgeneratorsintheMeistructureequation,anewtypeofMeiadiabaticinvariantinducedbyperturbationtoMeisymmetryforHamiltoniansystemwasreported.

简介：ByemployingthereductiveperturbationtechniquewederivedaKadomtsev-Petviashviliequationforunmagnetizeddustyplasmas.Itsuggeststhatthenonlineardustacousticsolitarywaveswithadiabaticvariationofdustchargearestableeventherearesomehigherordertransverseperturbatoins.Thereareonlyrarefactivesolitarywavesforthissystemwhichhasbeenverifiedanalyticallyinthispaper.

简介：Considerthesystem{vt-ux=0,ut+p(v,s)x=-αu,α>0,st=0,whichcanbeusedtomodeltheadiabaticgasflowthroughporousmedia.Herevisspecificvolume,udenotesvelocity,sstandsforentropy,pdenotespressurewithpv<0forv>0.Itisprovedthatthesolutionsof(1)tendtothoseofthefollowingnonlinearparabolicequationtime-asymptotically:{vt=-1/αp(v,s)xx;st=0,u=-1/αp(v,s)x.

简介：Thewell-posednessoftheinitialvalueproblemoftheEulerequationswasmainlydiscussedbasedonthestratificationtheory,andthenecessaryandsufficientconditionsofwell-posednessarepresentedforsomerepresentativeinitialorboundaryvalueproblem,thusthestructureofsolutionspaceforlocal(exact)solutionoftheEulerequationsisdetermined.Moreoverthecomputationformulasoftheanalyticalsolutionofthewell-posedproblemarealsogiven.

简介：Aschemeisproposedforgeneratingathree-dimensionalentangledstatefortwoatomstrappedinacavitybyonestepviaadiabaticpassage.Inthescheme,thetwoatomsarealwaysingroundstatesandthefieldmodeofthecavityexcitedisnegligibleunderacertaincondition.Therefore,theschemeisveryrobustagainstdecoherence.Furthermore,itneedsneithertheexactcontrolofallparametersnortheaccuratecontroloftheinteractiontime.Itisshownthatqutritentanglementcanbegeneratedwithahighfidelity.

简介：Westudytheoreticallyhowtoproduceanddetecttheultracoldground-stateCs2moleculefromFeshbachstate.Nu-mericalcalculationsareperformedbysolvingthequantumLiouvilleequationbasedonmultilevelBlochmodel.Theproducingefficiencyreaches55%andthedetectingefficiencyis31%.TheproducinganddetectingefficienciesarecloselyrelatedtotheRabifrequenciesoflaserpulses.Thedecayofrelevantelectronicandvibrationalstatesobviouslyreducestheproducinganddetectingefficiencies.

简介：ForEl-Nabulsi’sfractionalBirkhoffsystem,Meisymmetryperturbation,thecorrespondingMei-typeadiabaticinvariantsandNoether-typeadiabaticinvariantsareinvestigatedinthispaper.Firstly,basedonEl-NabulsiBirkhofffractionalequations,MeisymmetryandthecorrespondingMeiconservedquantity,NoetherconservedquantitydeducedindirectlybyMeisymmetryarestudied.Secondly,Mei-typeexactinvariantsandNoether-typeexactinvariantsaregivenonthebasisofthedefinitionofadiabaticinvatiant.Thirdly,Meisymmetryperturbation,Mei-typeadiabaticinvariantsandNoether-typeadiabaticinvariantsforthedisturbedEl-Nabulsi’sfractionalBirkhoffsystemarestudied.Finally,twoexamples,Hojman-UrrutiaproblemforMei-typeadiabaticinvariantsandanotherfortheNoether-typeadiabaticinvariants,aregiventoillustratetheapplicationoftheresults.

简介：在一个中央上的导致地形学的潜在的涡度(PV)旗帜放大地形学(Dabie山，此后DM)在理想化的干燥断热的流动下面，与中央规模在东方中国被学习数字模型，ARPS。PV旗帜与∼1.5PVU的最大的紧张在DM的庇护方面上产生，并且当宽度从几变化到十公里时，下游地扩大超过100km，它沿着DM的山脉与山峰的一半宽度形成对照。波浪碎在DM的庇护方面表面附近发生，并且导致强壮的PV代。与PV产生结合，由于切开的磨擦和流动在上游，PV下游地是advected，然后在DM上形成PV旗帜。PV旗帜对模型决定敏感，Coriolis力量，磨擦，潜水艇格子狂暴的混合，层化，在上游的风速度和风方向。否定PV旗帜与低级狂暴的动能有一个更紧缩的连接。PV旗帜被baroclinic和barotropic部件建立。联系barotropic的PV能识别PV旗帜的分发，当baroclinic那仅仅在地形学附近在胁腹上并且在庇护方面上有重要贡献时。PV流动被诊断在PV旗帜上调查磨擦的影响。类似的模式在全部的PV流动和移流的PV流动之间被发现，除了在表面附近并且在PV旗帜的偶极子内，在与磨擦联系的非移流的PV流动有一张网的地方否定贡献。