中文摘要：

通过精确求解能量本征方程、幺正变换和变分相结合的方法,研究了磁场中纳米管里极化子的性质.对KBr纳米管的数值计算表明:在均匀磁场中极化子的基态能量、激发态能量随纳米管外径减小(或内径增加)而增加,随纳米管内径减小(或外径增加)而减小,激发态能量随磁场强度的增加而增加.量子比特的振荡周期随纳米管内径增加(或外径减小)而减小,随磁场强度的增加而减小.

英文摘要：

In the magnetic field,ground and excited state energies as well as their wave functions of the polaron in a nanotube are obtained by using a combination of precisely solving the energy eigen-equation, unitary transformation and variation methods. Through the numerical results of KBr crystal show that the polaron’s ground and excited state energies will increase(or decrease)with increasing(or decreasing)the nanotube’s inside(or outside)diameter. The polaron’ s excited state energies will also increase with increasing the magnetic field strength. The oscillatory period of the qubit will decrease with increasing(or decreasing)the nanotube,s inside(or outside)diameter. The oscillatory period of the qubit will also decrease with increasing the magnetic field strength.