标题： 大阱分子离子的旋转冷却 显示英文标题

标题： Rotational cooling of large trapped molecular ions

摘要： 我们建议一种协议，用于将分子不对称顶转子与激光冷却的原子离子共同捕获时的协同冷却，该协议基于分子离子的电偶极矩与被捕获粒子的共同振动模式之间的共振耦合。 通过结合协同边带激光冷却和相干微波激发，我们展示了任意旋转子空间的有效去填充以及将旋转态的非相干分布冷却到单一、明确的量子态的能力。 这种能力为在量子信息处理和高精度光谱学中利用旋转希尔伯特空间打开了大门。 显示英文摘要

摘要： We suggest a protocol for the sympathetic cooling of a molecular asymmetric top rotor co-trapped with laser-cooled atomic ions,based on resonant coupling between the molecular ion's electric dipole moment and a common vibrational mode of the trapped particles. By combining sympathetic sideband laser cooling with coherent microwave excitation, we demonstrate the efficient depopulation of arbitrary rotational subspaces and the ability to cool an incoherent distribution of rotational states into a single, well-defined quantum state. This capability opens the door to exploiting the rotational Hilbert space for applications in quantum information processing and high-precision spectroscopy.