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9 个结果
  • 简介:我们建议从微波测量Josephson隧道连接的精力松驰时间的一个非静止的方法提高了逃跑现象。与以前的方法相比,我们的方法拥有简单、精确的特征。而且,决定了精力松驰时间,我们能进一步由改变微波力量获得在微波来源和连接之间的联合力量。

  • 标签: 超导体 约瑟夫森隧道结 张驰时间 测量方法
  • 简介:Josephsonjunctionarraychipsformicrovoltapplicationshavebeendesignedandfabricated.Avoltagestepassmallas1μVhasbeenobservedforasinglejunctioninthearraywhenitisdrivenby483.59MHzmicrowave.Byselectingdifferentpartsofthearray,itcanoutputavoltagefrom1μVto256μV.Theflatregionofthevoltagestepsisover200μA.Thiskindofarrayisusefulforpotentialmicrovoltapplications.

  • 标签: Josephson结阵列 应用程序 芯片级 输出电压 电位 平坦
  • 简介:dc和交流开车Josephson连接方程的动力学以二维的Poincare地图被学习。阶段柱体上的光滑的不变的圆抑制inover的盒子高山哈>2失去是的光滑一减少并且最后成为一个奇怪的引起注意的人。这触发二种混乱,一个人在在二个阿诺德舌头之间的区域发生,其它发生在舌头以内。

  • 标签: 不变量圆 约瑟夫森效应 混沌理论 方程式
  • 简介:WetheoreticallyinvestigatetheenergybandstructureandJosephsondynamicsofaspin-orbitcoupledBose–Einsteincondensateinadouble-wellpotential.WestudytheenergybandstructureandthecorrespondingtunnelingdynamicsofthesystembyproperlyadjustingtheSOcoupling,Ramancoupling,Zeemanfieldandatomicinteractions.ThecoupledeffectsofSOcoupling,Ramancoupling,Zeemanfieldandatomicinteractionsleadtotheappearanceofcomplexenergybandstructureincludingtheloopstructure.Particularly,theemergenceoftheloopstructureinenergybandalsodependsonSOcoupling,Ramancoupling,Zeemanfieldandatomicinteractions.Correspondingly,theJosephsondynamicsofthesystemarestronglyrelatedtotheenergybandstructure.Especially,theemergenceoftheloopstructureresultsincomplextunnelingdynamics,includingsuppression-revivaltransitionsandself-trappingofatomstransferbetweentwospinstatesandtwowells.Thisengineeringprovidesapossiblemeansforstudyingenergylevelandcorrespondingdynamicsoftwo-speciesSOcoupledBECs.

  • 标签: Bose–Einstein CONDENSATE JOSEPHSON dynamics spin-o