影响独立量子阱中声学极化子自陷转变的因素

The Factors on Self-trapping Transition of Acoustic Polarons in Free-standing Quantum Wells

利用Huybrechts变分法计算了独立量子阱中声学极化子基态能量及其数值导数随电子-声学声子耦合常数的变化关系,探讨了影响独立量子阱中声学极化子自陷的因素。得到了声学极化子自陷的判别标准随阱宽的增大而增大和CP值越小越有利于极化子发生自陷转变的结论。

The ground-state energies and the derivates of the acoustic polaron in free-standing quantum wells are performed by using the Huybrechts-like variational approach. Detailed numerical results confirm that the self-trapping transition of the acoustic polaron in free-standing quantum well will be easy to be realized with the decreasing width of the quantum well and CP.