例句與用法

1. in 1990s, a calculation of the ground-state energy of an exciton confined in a cylindrical quantum wire in the presence of a uniform magnetic field is reported as a function of wire radius, using a variational approach by gang li, spiros v . branis and k . k . bajaj . a . balandin and s . bandyopadhya present variational calculations of the ground-state exciton binding energy and exciton radius in a quantum wire subjected to an external magnetic field . these studies have been primarily responsible for our current understanding of the nature of excitonic states in a quantum wire subjected to an external magnetic field
   九十年代中期，人們就開始了關于在外加磁場時量子線中激子特性的研究，gangli,spirosv.branis和k.k.bajaj利用變分法，對于圓柱形的量子線中激子的基態(tài)束縛能進行了計算，發(fā)現(xiàn)對于一個給定的磁場值，激子的基態(tài)束縛能比不加磁場時變大。