GaⅡ能谱的MQDT分析

THE STRUCTURE OF HIGHLY EXCITED STATES OF RARE-EARTH ATOM Yb Ⅱ MQDT ANALYSIS OF EVEN-PARITY J=2 SPECTRUM

本文利用多通道量子数亏损理论(MQDT),通过拟合Isberg等人新近关于Gall的实验能级数据,确定出偶宇称J=0,1,2,3和奇宇称J=1,2六个对称块的MQDT参数,预言了十一个Rydberg系列分立能级的位置(直至n=100),画出了相应的Lu—Fano图,并分析了各Rydberg系列之间的干扰情况,能级计算值与已测得的实验值十分符合,相信今后在Call离子高激发能态的研究中会得到进一步证实。

The bound even-parity J = 2 spectrum of rare-earth atom Yb is analysed within the framework of 5-channel and 3-limt MQDT model. Revised eigenquantum defects μα are obtained and 300 levels including 6snd 1,3D2 (n = 8-155) and perturbers 6p2 1D2, 4f13 5d6s6pA and 4f13 5d6s6pB are calculated by using these newly obtained values of parameters. 150 highly excited 6snd 1,3D2 (n>81) levels are predicted for the first time. The channel mixing coefficients are also given and channel interactions are briefly discussed.The results show that the energy dependance of μα is more complicated than the usually assumed simple linear relation.