In this paper, the effects of the electric and magnetic fields on the optical absorption of GaAs/AlGaAs quantum multirings were studied. Using the two-dimensional finite element method, energy eigenvalues and wavefunctions were calculated, and optical absorption was obtained by the density matrix approach. The result showed that optical absorption increases with increasing number and size of the rings.

中文翻译：

---

外场对量子多环光吸收的影响

本文研究了电场和磁场对GaAs/AlGaAs量子多环光吸收的影响。采用二维有限元法计算能量特征值和波函数，采用密度矩阵法求得光吸收。结果表明，光吸收随着环数量和尺寸的增加而增加。