排序方式: 共有52条查询结果,搜索用时 15 毫秒
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用计算一维势阱波函数的方法简化了圆柱形量子线波函数的计算, 得出了量子线中电子的能态、 能级图和波函数。 在确定温度条件下, 讨论了量子线的线宽与它的光谱蓝移、 能级分离或兼并以及电子能态的关系。The wave function of column quantum wires has been calculated with the means of calculation for the quantum wave function in one dimensional potential well. The energy state, energy level diagram and wave function of column quantum wire have gained. Under assured temperature, the relations of column quantum wire diameter to its spectrum blue shift, separation or annexation of energy level, and electrons energy state have been discussed. 相似文献
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The photodetachment of H? near an elastic wall was investigated and an analytical formula of the crosssection was derived. It was found that the cross section is a superposition of a smooth background and sinusoidal oscillation, which depends on the distance between the ion and the elastic wall. The classical dynamics of the photo-detached electron and its quantum correspondence was analyzed. In this model, the semiclassical photodetachment cross section is exactly the same as the quantum result. 相似文献
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云南省白族长寿地区80~97岁老人头发中10种元素含量分析 总被引:2,自引:2,他引:2
用电感耦合等离子体发射光谱法(ICP-AES),对云南省白族长寿区80-97岁老人头发中的Ca、Mg、Cr、Cu、Fe、Mn、Mo、Sr、Zn、Cd等10种元素进行了测定分析。发现该长寿地区老人发中有高钙、高鲜、高锰、高铁、高铬、高锌、低铜的特点,并具有较高的Mn/Cu和Zn/Cu值。男性老人发中Ca、Mg、Cu、Fe、Mo、Zn、Cd的含量高于女性老人,Cr、Mn、Sr的含量则低于女性老人。结果表明,该长寿地区老人发中有较优越的微量元素谱,这与该地区和自然环境密切相关。 相似文献
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ZHENF Yi-xhuang GU Yong-jian GUO Guang-can 《量子光学学报》2002,8(Z1):19-20
We investigate the problemm of teleportation of a superposition coherent state with nonmaximally entangled coherent channel. Two strategies are considered to complete the task. The first one uses entanglement concentration to purify the channel to a maximally entangled one. The second one teleports the state through the nonmaximally entangled coherent channel directly. We find that the probabilities of successful teleportations for the two strategies are depend on the amplitudes of the coherent states and the mean fidelity of teleportation using the first strategy is always less than that of the second strategy. 相似文献
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云南省白族长寿区谷类粮食中19种元素含量的测定 总被引:3,自引:2,他引:3
采用电感耦合等离子体发射光谱法,对云南省白族长寿区的大米、玉米和黄豆中的19种元素进行了测定。结果显示,在3种谷类粮食中,均含有人体必需的3种常量元素Mg、P、S及4种微量元素Cr、Mn、Fe、Zn其中P、S、Mg、Fe、Zn的含量最高,其次是Mn、Cr。 相似文献
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碳纳米管修饰电极在分析化学中的应用 总被引:3,自引:0,他引:3
综述了碳纳米管所特有的物理和化学性质,碳纳米管的制备、纯化和修饰,重点介绍了碳纳米管修饰电极及其在分析化学中的一些研究成果.引用文献73篇. 相似文献