Adiabatic geometric phase in the nonlinear coherent coupler
Adiabatic geometric phase in the nonlinear coherent coupler
复制标题
非线性相干耦合器中的绝热几何相位
DOI:
10.1140/epjd/e2011-20517-1
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发表时间:
2011-12
影响因子:
1.8
通讯作者:
Liu, J.
中科院分区:
文献类型:
--
作者:
Zhang, L. D.;Fu, L. B.;Liu, J.
We introduce the concept of geometric phase to the nonlinear coherent coupler. With considering the adiabatic change of the distance-dependent phase mismatch, we calculate the adiabatic geometric phase related to the supermode of the coupler analytically. We find that the phase depends on the input light intensity explicitly. In particular, in the low and high intensity limits, the phase equals half of the area on the Poincare sphere enclosed by the evolution loop of the system. At the critical intensity where different supermodes merge, the phase diverges, which can be considered as the signal of a continuous phase transition.
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