这种液晶是双稳态的，意即没电时能保持反射状态或非反射状态。
The crystals are bistable, which means that they can remain in either a reflective or non-reflective state without any power.
光学双稳态的调制函数和反馈函数构成一组非线性方程。
Bistable optical devices modulating function and clectro- optical feedback function are a group of non- linear equation.
证明了亚泊松泵浦及原子的相干性可使多单光子双稳态的光场噪声降低，但不能产生光场的压缩效应。
We show that the refular pumping statistics and atomic coherences can reduce the field noise of multiple one photon optical bistability, but can not result in field squeezing from an ordinary vacuum.
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