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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >Scaling behavior of the Yukawa potential in two and three dimensions: a comparative study
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Scaling behavior of the Yukawa potential in two and three dimensions: a comparative study

机译:汤川势在二维和三维上的尺度行为:一个比较研究

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摘要

By using the Laguerre basis in two and three dimensions, we report the scaling behavior of the bound state energies associated with the Yukawa potential. The energy spectrum crossover phenomenon is shown to exist through the scaling law for bound state energies vertical bar nl > at different principal quantum numbers n and the angular momentum l, as we approach the continuum. It is found that the bound/resonance phase transitions in vertical bar n1 > and vertical bar n2 > states are of the first order, while it is higher in the case of vertical bar n0 > states. Few physical phenomena, such as the dipole matrix element, the oscillator strength and the transition probabilities for the Yukawa potential are calculated in both two and three dimensions, and then compared with the analytic Coulomb potential. A comparison is made between the two- and three-dimensional cases. This method has a potential application in predicting stable and metastable nuclear, molecular, atomic and graphene states.
机译:通过在二维和三维中使用Laguerre基,我们报告了与Yukawa势相关的束缚态能量的缩放行为。当我们接近连续体时,通过在不同的主量子数n和角动量l处的束缚态能量垂直线nl>的缩放定律,存在能谱交叉现象。发现垂直条n1>和垂直条n2>状态中的束缚/共振相变是一阶的,而在垂直条n0>状态的情况下则更高。在二维和三维中都很少计算偶极矩阵元素,振荡器强度和汤川势的跃迁概率等物理现象,然后将其与解析库仑势进行比较。在二维和三维情况下进行了比较。该方法在预测稳定和亚稳态的核,分子,原子和石墨烯状态方面具有潜在的应用。

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