当然，除了极化模式色散效应，单模光纤中还存在着其它次要的非对称效应如几何相位（geometric phase）、极化相关损耗 （polarization．dependent loss）等，这些效应对光纤量子密码影响不是很大。
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Our results are included as follows:(1) We have obtained a general formula for geometric phase for Dicke model(proportional to the average photon number) and found that this ground-state geometric phase has an important relation with the superradiant quantum phase transition.
而且证明该几何相位与量子相变有着重要的关系。
参考来源 - 微腔中多体系统的新奇量子相变及其调控·2,447,543篇论文数据，部分数据来源于NoteExpress
该结果对基于几何相位的容错量子信息处理具有非常重要的意义。
It is significant to the quantum information processing based on the geometric phase.
文章研究了自旋为1的粒子在旋转磁场中的几何相位和动力学相位。
The geometric and dynamic phase for spin-1 particle in a rotating magnetic field are studied.
与几何相位门相比，这种相位门更简单，并且保真度可得到进一步提高。
Compared with geometric phase gates, the procedure is simple and the fidelity may be improved.
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