禁戒跃迁 meaning in English
forbidden beta transition
forbidden transition
Examples
- Abstract : we have studied theoretically a beat effect in a four - level system due to fifth - order optical polarization , and considered the cases that the pump beams have either narrowband or broadband linewidth . we have found that the accuracy for the energy - level splitting measurement is determined by the homogeneous linewidths of the optical transitions . that is to say , this technique can achieve doppler - free precision in the measurement of the energy level splitting between two excited states which are dipolar forbidden from the ground state
文摘:研究了四能级系统中基于五阶极化的拍频效应，考虑了抽运光束为窄带线宽或宽带线宽的情形.发现其对能级分裂的测量精度决定于光学跃迁的均匀增宽.也就是说，这种技术在测量与基态是偶极禁戒跃迁的两激发态之间的能级分裂时，可得到消除多普勒增宽的精度 - The " allowed " electric dipole ( el ) transitions will encounter strong competition from " forbidden " transitions , i . e . magnetic dipole ( ml ) , electric quadruple ( e2 ) and other higher order transitions , the transitions rates for the forbidden decay scale with higher powers of z than those of el transitions , the effects of quantum electrodynamics ( qed ) also scale with higher power of z . accelerator - based beam - foil spectroscopy ( bfs ) is an important method for spectroscopic studies of highly ionized atoms
在高离化态原子中，磁相互作用明显增强， “允许的”电偶极( e1 )跃迁将遭到来自磁偶极( m1 ) 、电四极矩( e2 )和其它高次的“禁戒”跃迁的强烈竞争，禁戒跃迁几率随核电荷数z增加而迅速增加，此外量子电动力学效应也随着z增加而增强。