When the atom is prepared in ground state or excited state initially, there appear obvious squeezing effects for the coherent optical field.
原子处在单纯的基态或激发态时光场都有明显的压缩现象出现；
When the atom is prepared in ground state or excited state initially, there appear obvious squeezing effects for the coherent optical field.
原子处在单纯的基态或激发态时光场都有明显的压缩现象出现；
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