简介：分享计划的一个量秘密被使用quantumregisters建议。在建议计划，秘密消息状态被编码进多国参加的entangledstates。几个相同多粒子纠纷状态被产生，theentanglement状态的每个粒子被填充当secretmessage的份额的不同的量寄存器。二个模式，即检测模式和消息模式，被采用以便theeavesdropping能容易被检测，秘密消息可以被恢复。建议计划对偷听者偷听并且欺骗ofparticipants是安全的安全analysisshows。

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简介：在一系列最近的报纸[1-4]没有，免费的量地理论怎么能用机械原语被导出，被显示出(包括时空，特殊相关性，量子化规则，等等)，但是仅仅考虑包含其相互作用的网络满足unitarity，同质，地区，和isotropy的简单原则的量系统的一个可计算的集合的最容易的量算法。这打开了线路到扩大抽象系统的量子论的公理的信息理论上的推导[5，6]包括量域理论。参考axiomatization的固有的分离性质导致量地理论的延期到量细胞的自动机理论，在平常的地理论在自动机的分离结构不能被探查的政体被恢复的地方。简单启发式的争论给组件的规模到普朗克常数规模的A，和组件不是可见的惯常的物理政体是相对论小wavevectors之一。

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简介：Weproposeaschemetoengineeranon-localtwo-qubitphasegatebetweentworemotequantum-dotspins.Alongwithone-qubitlocaloperations,onecaninprincipalperformvarioustypesofdistributedquantuminformationprocessing.Theschemeemploysaphotonwithlinearlypolarisationinteractingoneaftertheotherwithtworemotequantum-dotspinsincavities.Duetotheopticalspinselectionrule,thephotonobtainsaFaradayrotationaftertheinteractionprocess.Bymeasuringthepolarisationofthefinaloutputphoton,anon-localtwo-qubitphasegatebetweenthetworemotequantum-dotspinsisconstituted.Ourschememayhasveryimportantapplicationsinthedistributedquantuminformationprocessing.

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简介：AnalternativeschemeisproposedtotransferquantumstatesandprepareaquantumnetworkincavityQED.Itisbasedontheinteractionofatwo-modecavityfieldwithathree-levelV-typeatom.Inthescheme,theatom-cavityfieldinteractionisresonant,thusthetimerequiredtocompletethequantumstatetransferprocessisgreatlyshortened,whichisveryimportantinviewofdecoherence.Moreover,thepresentschemedoesnotrequireonemodeofthecavitiestobeinitiallypreparedinone-photonstate,thusitismoreexperimentallyfeasiblethanthepreviousones.

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简介：我们在场Bertrand市场由两家卖主垄断的局面和学习的一个量模型利润上的纠纷行为公司工作。用到对手的价格的每个公司的最佳的反应的概念，我们为最大地纠缠的起始的状态发现一个仅仅纳什equilibirum点。处于起始的状态的量纠纷的存在在纳什平衡比古典发薪更高把发薪给公司。作为结果，在古典比赛的像窘境的状况被解决。[从作者抽象]

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简介：AcouplingstructureofCdSequantumdots(QDs)andaZnCdSequantumwell(QW)isfabricatedbyusingthemolecular-beamepitaxytechnique.Theeffecto~temperatureonthephotoluminescence(PL)ofthestructureisstudied.TheresultsrevealthattheactivationenergyofexcitondissociationinthecouplingQDs/QWstructureismuchhigherthanthatofsimpleCdSeQDs,whichisattributedtotheexcitontunnellingfromtheQWtoQDsthroughathinZnSebarrierlayer.TheresultsalsorevealthatthepositionandwidthoftheemissionbandoftheQDsvarydiscontinuouslyatcertaintemperatures.ThisphenomenonisexplainedbytheQDionizationandexcitontunnellingfromtheQWtotheQDs.ItisdemonstratedthatthecouplingstructuresignificantlyimprovesthePLintensityofCdSeQDs.

简介：CdSequantumdotsensitizedsolarcells(QDSCs)modifiedwithgraphenequantumdots(GQDs)havebeensuccessfullyachievedinthisworkforthefirsttime.Satisfactorily,theoptimizedphotovoltage(Voc)ofthemodifiedQDSCswasapproximately0.04VhigherthanthatofplainCdSeQDSCs,consequentlyimprovingthephotovoltaicperformanceoftheresultingQDSCs.ServedasanovelcoatingontheCdSeQDsensitizedphotoanode,GQDsplayedavitalroleinimprovingVocduetothesuppressedchargerecombinationwhichhasbeenconfirmedbyelectronimpedancespectroscopyaswellastransientphotovoltagedecaymeasurements.Moreover,differentadsorptionsequences,concentrationanddepositiontimeofGQDshavealsobeensystematicallyinvestigatedtoboostthepowerconversionefficiency(PCE)ofCdSeQDSCs.AfterthecoatingofCdSewithGQDs,theresultingchampionCdSeQDSCsexhibitedanimprovedPCEof6.59%underAM1.5Gfullonesunillumination.

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简介：Thebindingenergyofexcitonsconfinedtoaquantumringundertheinfluenceofperpendicularhomogeneousmagneticfieldiscalculatedasafunctionoftheringradius.Calculationsaremadebyusingthemethodofexactdiagonalizationwithintheeffective-massapproximation.Thefeatureofbindingenergyofthegroundstateasafunctionoftheringradiusforseveralvaluesofthemagneticfieldhasbeenrevealed.Theinterestingfeatureofourstudyisthat,inaquantumring,thegeometricstructureofexcitonsmayrevealtransition.

简介：Consideringclassicalenvironmenttobeaclassicaloscillator,wedescribethedynamicsofasystemconsistingofaquantumoscillatorcoupledtoclassicaloscillator.UsingtheBorn-Oppenheimerapproximationandthemethodofadiabaticinvariants,wederivetheclassicallyeffectiveHamiltoniandescribingthecompletedynamicsofthesystemandthewavefunctionofquantumpartofthesystem.Wealsopresentanewmethodforinvestigatingthedynamicsofthequantumsysteminclassicalenvironment.