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简介：ThepropagationofquadrupleGaussianlaserbeaminaplasmacharacterizedbyaxialinhomogeneityandnonlinearityduetoponderomotiveforceintheparaxialrayapproximationisinvestigated.Anappropriateexpressionforthenonlineardielectricconstanthasbeendevelopedinthepresenceofexternalmagneticfield,withlinearabsorptionandduetosaturationeffectsforarbitrarylargeintensity.Theeffectsofdifferenttypesofplasmaaxialinhomogeneitiesonself-focusingoflaserbeamhavebeenstudiedwiththetypicallaserandplasmaparameters.Self-focusingofquadrupleGaussianlaserbeaminthepresenceofexternallyappliedmagneticfieldandsaturatingparameterisfoundsignificantlyimprovedinthecaseofextraordinarymode.Ourresultsrevealthatinitiallyconvergingbeamshowsoscillatoryconvergencewhereasinitiallydivergingbeamshowsoscillatorydivergence.Thebeamismorefocussedatlowerintensityinbothcasesviz.extraordinaryandordinarymode.

简介：最高的帮助颜色的彩色印片法模型(TC2)预言一个非通用的Z'计量器波色子，它与提高的力量联合到第三产生费米子。我们在LHC通过过程ggt在生气的节和最高的夸克对生产的旋转关联上学习这个非通用的计量器波色子的效果。我们发现全部的生气的节和旋转关联能被减少由?4.7%并且?1.4%分别地在允许的参数空格。

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简介：BasedontheHolsteinmodelHamiltonianofone-dimensionalmolecularcrystals,bymakinguseoftheexpansionapproachofthecorrelatedsqueezed-coherentstatesofphononinsteadofthetwo-phononcoherentstateexpansionscheme,thepropertiesofthegroundstateandtheanomalousquantumfluctuationsareinvestigatedinastronglycoupledelectron-phononsystemwithspecialconsiderationoftheelectron-two-phononinteraction.Theeffectiverenormalization(αi)ofthedisplacementofthesqueezedphononswiththeeffectofthesqueezed-coherentstatesofphononandboththeelectron-displacedphononandthepolaron-squeezedphononcorrelationshavebeencombinedtoobtaintheanomalousquantumfluctuationsforthecorrectionsofthecoherentstate.Duetothesenon-adiabaticcorrelations,theeffectivedisplacementparameterαiislargerthantheordinaryparameterα(0)i.Incomparisonwiththeelectron-one-phononinteraction(g)correctedasαig,wehavefoundtheelectron-two-phononinteraction(g1)correctedasαi2g1isenhancedsignificantly.Forthisreason,thegroundstateenergy(E(2)0)contributedbytheelectron-two-phononinteractionismorenegativethanthesingle-phononcase(E(1)0)andthesolitonsolutionismorestable.Atthesametime,theeffectsoftheelectron-two-phononinteractiongreatlyincreasethepolaronenergyandthequantumfluctuations.Furthermore,inadeeperlevel,wehaveconsideredtheeffectofthepolaron-squeezedphononcorrelation(f-correlation).Sincethiscorrelationparameterf>1,thiseffectwillstrengthentheelectron-oneandtwo-phononinteractionsbyfαigandf2αi2g1,respectively.Thefinalresultsshowthatthegroundstateenergyandthepolaronenergywillappearmorenegativefurtherandthequantumfluctuationswillgainfurtherimprovement.