用电场控制冷分子的电子自旋弛豫
Controlling electronic spin relaxation of cold molecules with electric fields
摘要：
我们提出了一个理论研究的叠加电场和磁场中的原子-分子碰撞，并表明，在温度低于0.5 K的分子中的电子自旋弛豫的动力学可以通过改变所施加的场的强度和相对取向来操纵。电场控制塞曼跃迁的机制是基于分子内自旋-旋转耦合和分子-场相互作用之间的复杂相互作用。我们认为，电场可以通过诱导非绝热自旋跃迁来影响化学反应，并促进磁阱中分子的蒸发冷却。
英文摘要：
We present a theoretical study of atom - molecule collisions in superimposed electric and magnetic fields and show that dynamics of electronic spin relaxation in molecules at temperatures below 0.5 K can be manipulated by varying the strength and the relative orientation of the applied fields. The mechanism of electric field control of Zeeman transitions is based on an intricate interplay between intramolecular spin-rotation couplings and molecule-field interactions. We suggest that electric fields may affect chemical reactions through inducing nonadiabatic spin transitions and facilitate evaporative cooling of molecules in a magnetic trap.
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