利用磁场脉冲序列提高分子转化效率
Enhancing molecular conversion efficiency by a magnetic field pulse sequence
摘要：
我们提出了一种策略，以提高附近的费什巴赫共振的原子到分子的转换效率。在平均场近似下，我们得到了经典哈密顿量的不动点解。讨论了原子和分子态在不动点解附近的拉比振荡及其振荡周期。通过设计一系列类似于Ramsey实验的磁场脉冲，我们表明，通过适当地调节脉冲宽度，可以获得更高的原子-分子转换效率。
英文摘要：
We propose a strategy to enhance the atom-to-molecule conversion efficiency near a Feshbach resonance. Based on the mean-field approximation, we derive the fixed point solutions of the classical Hamiltonian. Rabi oscillation between the atomic and molecular states around fixed point solutions and its oscillation period are discussed. By designing a sequence of magnetic field pulses in analogy with Ramsey experiments, we show that a much higher atom-to-molecule conversion efficiency can be accessed by tuning the pulse durations appropriately.
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