简介：Thedoubleconstraintequationsintheself-dualgravitationaltheorycontainingthecosmologicaltermarederivedin3+1gravity.Furthermore,inordertodeeplystudytheLorentzianandEuclideanrealityconditionsforthistheory,therelationsbetweenconstraintsarediscussedbyintroducingthedoubleconstantconformaltransformationandthedoublecomplexfunctionmethod.

简介：Atheoreticalinvestigationiscarriedouttostudytheexistence,formationandbasicpropertiesofionacoustic(IA)doublelayers(DLs)inamagnetizedbi-ionplasmaconsistingofwarm/coldionsandBoltzmanndistributedelectrons.Basedonthereductiveperturbationtechnique,anextendedKortewegde-Vries(KdV)equationisderived.Thepropagationoftwopossiblemodes(fastandslow),andtheirevolutionareinvestigated.Theeffectsofobhqueness,magnitudeofthemagneticfield,ionconcentration,polarityofions,andiontemperatureontheIADLprofileareanalyzed,andthentherangesofparametersforwhichtheIADLsexistareinvestigatedindetails.

简介：BasedonthelowenergyeffectiveHamiitonianwithnaivefactorization,wecalculatethebranchingratios（BRs）andCPasymmetries（CPAs）forthetwentythreedoublecharmdecaysB/Bs→Ds*Ds*inboththestandardmodel（SM）andtheminimalsupergravity（mSUGRA）model.Withintheconsideredparameterspace,wefindthat（a）thetheoreticalpredictionsfortheBRs,CPAsandthepolarizationfractionsintheSMandthemSUGRAmodelareallconsistentwiththecurrentlyavailabledatawithin±2σerrors;（b）Foralltheconsidereddecays,thesupersymmetriccontributionsinthemSUGRAmodelareverysmall,lessthan7%numerically.ItmaybedifficulttoobservesosmallSUSYcontributionsevenatLHC.

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简介：Near-fleldcoupledplasmonicsystemsgenerallyachieveplasmonicallyinducedtransparency（PIT）usingonlyone-waybright-darkmodecoupling.However,itischallengingtorealizesuchwell-designeddevices,mainlybecausetheydependsignificantlyonthepolarizationdirection.Weexploitsurfaceplasmonssup-portedbytwocrossedlayersofgraphenenanoribbons（GNRs）toachievedynamicallytunablePIT,whereeachGNRoperatesasboththebrightanddarkmodessimultaneously.TheproposedPITcanresultfromeitherone-waybright-darkmodeinteractionsorbidirectionalbright-brightandbright-darkmodehybrid-izedcouplingwhenthepolarizationisperpendicular/paralleloratanangletotheGNRs,respectively.Additionally,identicalribbonwidthsyieldpolarization-insensitivesingle-windowPIT,whereasdifferentribbonwidthsproducepolarization-dependentdouble-windowPIT.Weexaminetheproposedtechniqueusingplasmonwavefunctionsandthetransfermatrixmethod;analyticalandnumericalresultsshowex-cellentagreement.ThisstudycanprovidephysicalinsightintothePITcouplingmechanismsandadvancetheanulicabilitvandversatilityofPIT-basedsensingplatformsandotheractivedevices.

简介：SpokecavitieshavebeendevelopedandhaveapparentadvantagesforhighcurrentprotonacceleratorbasedonFig.1(coloronline)Theelectromagneticfielddistribution.superconductivityatlowandmediumenergyregion.Astheresearchandthetechnicalreserve,InstituteofModernPhysics(IMP)hasstartedtheR&Dprogramofadoublespokecavity(operatingfrequency325MHz,0=0.52),withintheframeworkofChinaAcceleratorDrivenSystem(C-ADS)project.TheRFdesignandmechanicalstructuredesignhavebeenfinished,andtwoprototypecavitiesweremanufacturedinHarbin.

简介：我们在场对为在两倍井的ultracold波色子的物理政体的彻底的描述，与专辑，注意付钱到宏观的重叠(MS)。我们使用多达八个单个粒子模式的Lipkin-Meshkov-GlickHamiltonian的归纳学习这些MS，解决有数字准确diagonalization和高顺序的不安理论的联合的Hamiltonian。MS在左、正确的潜在的井之间；有同时位于井并且在仅仅二个模式的所有原子的极端情况是著名中午状态，但是我们的途径包含更一般的MS。更单个的粒子模式的使用把维数带进这个问题，允许我们将难限制放在通常在文学对待的原来的二模式的LMG模型的使用上，并且也介绍混合Josephson-Fock政体。更高的模式与不同尖性质介绍自由和MS状态的尖度。

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简介：Usingaclassicalensemblemethod,wehaveinvestigatedsequentialdoubleionization（SDI）ofAratomsdrivenbyellipticallaserpulses.TheresultsshowthattheionmomentumdistributionoftheAratomsdependsstronglyonthepulseduration.Asthepulsedurationincreases,theionmomentumdistributionchangesfromtwobandstofourbandsandthentosixbandsandfinallytoaneight-bandstructure.Backanalysisofdoubleionizationtrajectoriesshowsthatthevariationofthebandstructureoriginatesfrompulsedurationdependentmultipleionizationburstsofthesecondelectron.Ourcalcu-lationsindicatethatthesubcycleelectronemissionintheSDIcouldbemoreeasilyaccessedbyusingellipticallaserpulseswithalongerwavelength.Moreover,weshowthatthereisgoodcorrespondencebetweenthescaledradialmomentumandtheionizationtime.

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简介：在现在的学习，双楔机翼模型的空气动力学的特征被把吃惊试管用作一条断断续续的风隧道在接近音速的流动调查。司机和吃惊试管的驾驶气体是干燥空气。两倍楔的机翼模型有58公里的跨度，75公里和它的最大的厚度是的弦长度c=7.5公里。双楔机翼模型的顶从前缘位于35%弦长度。马赫数字从0.80～0.88的热气体的范围，和雷纳兹数字基于弦长度是3.11脳105锝?3.49脳105分别地。流动可视化被能设想三个维的流动领域的锋利的集中schlieren方法执行。结果证明现在的系统能设想比以前的系统清楚的接近音速的flowfield，并且冲击波在测试节跨度的中心介绍是设想的关键词冲击波-schlieren方法-接近音速的流动-两倍楔-机翼模型CLC数字V211.7

简介：Theeffectsofthemagneticfieldonthevalencebondpropertyofthedouble-quantum-dotmoleculearenumericallystudiedbythefiniteelementmethodandperturbationapproachbecauseoftheabsenceofcylindricalsymmetryinthehorizontallycoupleddots.Thecalculationresultsshowthattheenergyvalueofthegroundstatechangesdifferentlyfromthatofthefirstexcitedstatewithincreasingmagneticfieldstrength,andtheycrossunderacertainmagneticfield.Theincreasingmagneticfieldmakesthecovalentbondstatechangeintoanionicbondstate,whichagreesqualitativelywithexperimentalresultsandandmakesionicbondstatesremain.Theoscillatorstrengthoftransitionbetweencovalentbondstatesdecreasesdistinctlywiththeincreasingmagneticfieldstrength,whenthemoleculeisirradiatedbypolarizedlight.Suchaphenomenonispossiblyusefulforactualapplications.

简介：我们学习与一个浸透的非线性的双井潜力在一枚旋转戒指套住的基本模式。这个模型，它基于非线性的Schr?dinger方程，能以光在一根扭曲的波导管子中被构造繁殖，或在在旋转-out-of-phase的联合下面装进一个toroidal陷井的Bose爱因斯坦冷凝物(BEC)，线性潜在、非线性的pseudopotential借助于旋转导致了光地和Feshbach回声。基本模式的三种类型在这个模型，对称的模型和其它被识别二不对称。在不同模式之间的模式和转变的形状和稳定性在第一个旋转Brillouin地区被调查。一个类似的模型使用了克尔媒介到造它的非线性的潜力，但是我们用浸透的非线性的媒介代替它。模型展出不仅对称碎，而且对称恢复。不稳定的不对称的模式的一种特定的类型也被发现，并且不稳定的不对称的模式的进化展示在二口线性井之间的Josephson摆动。由把模型看作一个BEC系统的一种配置，扎根的州的模式在这三种类型之中被识别，它在陷井附近描绘BEC原子的特定的分布。

简介：Plasmonicgratingstructureshavebeenshowneffectiveatincreasingnear-fieldopticalenhancement.Adoublewidthplasmonicgratingdesignisintroduced,whereeachperiodhastwoalternatingmetalwidthsseparatedbyananogap.Withthisnewdesign,analysishasshownthatplasmonicresonancescouplebetweeneachmetalsection,resultinginevengreateropticalenhancementcomparedwithsingle-widthgratings.Thegeometrythatgivesthegreatestopticalenhancementhasbeendeterminedwithacomputationalmodel.Thisworkdemonstratesthattheincreasedenhancementisduetohybridizedmodesthatcouplebetweenthetwogratingsegments.

简介：一只新奇侧面的双门通道领域效果晶体管(DG-TFET)被学习，它的性能被二维的设备模拟与代码ISE介绍。Theresult证明这只新通道晶体管允许在60mV/dec下面的更陡峭的次于最低限度的秋千，超级低供应电压(在V-DD<合用0.3V)并且rail-to-rail逻辑(在排水管来源电压V-DS=的重要在状态上电流50mV)为好攻击的技术，high-k/metal的可获得性的假设与相等的门氧化物厚度传输结束字符=叠0.24nm和工作工作差别4.5材料的eV。

简介：Wehaveoptimizedtheinputpulsewidthandinjectiontimetoachievethehighestpossibleoutputpulseenergyinadouble-passlaseramplifierusingtwoNd:YAGrods.Forthispurpose,wehaveextendedtheFrantz–Nodvikequationbysimultaneouslyincludingbothspontaneousemissionandpumpenergyvariation.Theeffectivepumpenergyoftheflashlampwas8.84Jforeachgainmedium.Theenergyof1Jcouldbeamplifiedtoanoutputenergyof12.17Jwiththemaximumachievedextractionefficiencyof63.18%whenaninputpulsehavingapulsewidthof168μsissent10μsaftertheabsorbedpumpenergybecomesthemaximumvalue.

简介：ItisshownthatananomalyofthespectrumtakesplaceintheinterferencefieldwhenYoung'sdouble-slitinterferenceexperimentisilluminatedbyspatiallycoherentpolychromaticlight.Specifically,drasticspectralchanges(i.e.thespectralshiftsexhibitarapidtransition)occurinthevicinityofthedarkfringes.Thepotentialapplicationsofthisspectralanomalyarealsoconsidered.

简介：Atheoreticalstudyofresonanttunnelingiscarriedoutforaninverseparabolicdouble-barrierstructuresubjectedtoanexternalelectricfield.Tunnelingtransmissioncoefficientanddensityofstatesareanalyzedbyusingthenon-equilibriumGreen’sfunctionapproachbasedonthefinitedifferencemethod.Itisfoundthattheresonantpeakofthetransmissioncoefficient,beingunityforasymmetricalcase,reducesundertheappliedelectricfieldanddependsstronglyonthevariationofthestructureparameters.