论文标题
部分可观测时空混沌系统的无模型预测
Radiation-field-driven ionization in laser-assisted slow atomic collisions
论文作者
论文摘要
通常认为，对于在慢速原子碰撞中发生的电离过程，碰撞系统与量子辐射场的耦合是无关的。但是，我们在这里表明 - 与期望相反 - 这种耦合可以强烈影响原子物种束的电离，从而缓慢地横穿原子种类B的气体B被弱激光场激发。此外，当碰撞速度增加，在A和B中超过典型的电子绕速度的典型电子轨道速度时，这种耦合变得更加重要。我们的结果表明，实际上，Breit相互作用实际上可以在非常低的能量上占主导地位。
It is generally assumed that for ionization processes, which occur in slow atomic collisions, the coupling of the colliding system to the quantum radiation field is irrelevant. Here we show, however, that -- contrary to expectations -- such a coupling can strongly influence ionization of a beam of atomic species A slowly traversing a gas of atomic species B excited by a weak laser field. Moreover, this coupling becomes even more important when the collision velocity increases, getting comparable or exceeding the typical electron orbiting velocities in A and B. Our results imply furthermore that the Breit interaction can, in fact, dominate over the Coulomb interaction at very low energies.
