论文标题
通过直流电场控制RBC的交流AC Stark效应
Controlling the ac Stark effect of RbCs with dc electric and magnetic fields
论文作者
论文摘要
我们研究了静态电场和磁场对超电荷玻色子$^{87} $ rb $^{133} $ cs分子的微波过渡的差分AC stark偏移的影响，用于波长$λ= 1064〜 \ MATHRM {Nm {Nm} $。在此波长附近，我们观察到可能导致陷阱损失的意外两光子过渡。我们使用第一个旋转过渡的微波光谱法测量了外部磁场和电场中的交流效果。我们在该波长下量化了分子极化性的各向同性和各向异性部分。我们证明，适度的电场可以使核自旋与旋转角动量解矛，从而大大简化了AC鲜明的效果。我们使用此简化使用捕获激光的极化角度来控制AC Stark Shift。
We investigate the effects of static electric and magnetic fields on the differential ac Stark shifts for microwave transitions in ultracold bosonic $^{87}$Rb$^{133}$Cs molecules, for light of wavelength $λ= 1064~\mathrm{nm}$. Near this wavelength we observe unexpected two-photon transitions that may cause trap loss. We measure the ac Stark effect in external magnetic and electric fields, using microwave spectroscopy of the first rotational transition. We quantify the isotropic and anisotropic parts of the molecular polarizability at this wavelength. We demonstrate that a modest electric field can decouple the nuclear spins from the rotational angular momentum, greatly simplifying the ac Stark effect. We use this simplification to control the ac Stark shift using the polarization angle of the trapping laser.
