简述光抽运效应的原理 外加恒磁场下的光抽运就是要造成偏极化。σ-光有同样作用，它将大量粒子抽运到MF＝-2子能级上。当为π光时，由于ΔMF=0，则无光抽运效应，此时Rb
波色 爱因斯坦凝聚态 可以怎样做到？ 1.应为“玻色-爱因斯坦凝聚态（Bose-Einstein Condensation，BEC）”2.\"玻色-爱因斯坦凝聚是科学巨…
翻成英文 Light the Ci resonance(light pump Ci resonance)make use of light take out luck(Optical PumPing)effect to come to study an atom super fine the structure fill Man son ability the Ci resonance of the class.The object of research is the alkali metals atom Ru(Rb)and the content big isotope have 2 kinds in the natural Ru：The 85 Rb have 72.15%，the 87 Rb have 27.85%.The double of the resonance of the optics frequency and the Ci resonance of the radio frequency or microwave frequency simultaneous with of atom，member resonance phenomenon.For the ground state Ci of the atom or the member resonance，because of atom bunch，member bunch or air appearance of the atom，member density be low，signal very weak，difficult in direct observation arrive resonance signal.Make use of light beam，take out the luck to these atom or member first to stir up Tai(namely is aroused Tai)，then let it again return to ground state，such as take out a luck light of frequency or be partial to flap accommodation，can 。
