The interaction time between the atom and cavity modes are all, where is the effective atom-cavity coupling constant.
原子和每个腔模的相互作用时间均为，其中是原子和腔的有效耦合常数。
The results indicate: the effective mass of an acoustical polaron undergoes a sudden increasing when thee-p coupling constant achieves the critical value and then the self-trapping occurs.
结果表明：电子-声子耦合达到一定强度时声学极化子有效质量发生突变而使极化子自陷，声学极化子在二维系统中比三维条件下更容易自陷。
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