简介:Friedberg,LeeandZhao(FLZ)proposedamethodforeffectivelyevaluatingtheeigenenergiesandeigenwavefunctionsofquantumsystems.Inthiswork,westudyseveralspecialcasestoinvestigateapplicabilityofthemethod.Concretely,wecalculatetheground-stateeigenenergyoftheHellmannpotentialaswellastheCornellpotential,andalsoevaluatetheenergiesofthesystemswherelineartermisaddedtotheCoulombasaperturbation.Theresultsobtainedinthismethodhaveasurprisingagreementwiththetraditionalmethodorthenumericalresults.Sincetheresultsinthismethodhaveobviousanalyticitycomparedtothatinothermethods,andbecauseofthesimplicityforcalculationsthismethodcanbeappliedtosolvingtheSchrodingerequationandprovidesusabetterunderstandingofthephysicalessenceoftheconcernedsystems.ButmeanwhileapplicationsoftheFLZmethodarerestrictedatpresent,especiallyforcertainpotentialforms,butduetoitsobviousadvantages,itshouldbefurtherdeveloped.
简介:AnInterviewwithLiYiningOnJanuary17,1994,ourreporterinterviewedMrLiYining,well-knownprofessorofeconomics,memberoftheStandingCo...
简介:GrindinginkwasanimportantstepofpaintingandwritingforChineseliteratiinancienttimes.PainterMr.LiPingyehasbeengrindinghisinkfornearly80years.Itisdifficulttotellwhetherhehasbeengrindinginkortheinkhasbeengrindinghim.ThisfamouscontemporaryChinesetraditionalpainterhasexperiencedinnumerablefrustrationsandsufferingsoflife.
简介:Recently,manywomenartistshavebecomeinterestedinrunningonlinemagazines.XuJinglei(徐静蕾)andChenLuyu(陈鲁豫)havesetsuchexamples.NowLiXiang(李湘)isalsohavingatry.ItisreportedthatMsLihasinvestedalargesumofmoneyinhermagazinewhichisfocusedonwomen’sfeelingsandemotions.ShehasaskedsuchfamouswritersasGuoJingming(郭敬明),Meizi(梅子)andWangXiaofeng(王小峰)towriteforhermagazineandpromisedagoodpayinreturn.Inthefirstissue,GuoJingmingpublishedastoryaboutthegirlsborninthe1980s.