标题： 一个被困且与离子晶体的振动模式耦合的平面转子 显示英文标题

标题： A planar rotor trapped and coupled to the vibrational modes of an ion crystal

摘要： 平面转子可以通过将分子离子或带电纳米粒子与原子离子一起限制在保罗陷阱中来实现。 我们研究了具有电偶极矩的分子离子或带电纳米粒子的情况，该偶极矩耦合到陷阱中公共振动运动的模式。 我们计算了耦合强度，对于转子质量从典型的双原子分子的 $10^2$ 原子单位到对应于纳米团簇的 $10^{6}\,$ 原子单位的范围内的具体振动模式。 要么，这种耦合表现为旋转态和离子晶体振动模式之间的共振能量交换。 或者，在非共振情况下，偶极子-声子耦合导致能量偏移。 在这两种情况下，我们都讨论了如何通过边带分辨激光光谱和去相干测量来实验检测这一效应。 显示英文摘要

摘要： Planar rotors can be realized by confining molecular ions or charged nanoparticles together with atomic ions in a Paul trap. We study the case of molecular ions or charged nanoparticles that have an electric dipole moment which couples to modes of the common vibrational motion in the trap. We calculate the strength of the coupling with specific vibrational modes for rotor masses ranging from $10^2$ atomic units, as typical for diatomic molecules, to $10^{6}\,$ atomic units, corresponding to nanoclusters. Either, the coupling manifests as a resonant energy exchange between rotational states and one of ion crystal vibrational modes. Or, in the off-resonant case, the dipole-phonon coupling results in energy shifts. In both cases we discuss how the effect may be experimentally detected using sideband-resolved laser spectroscopy and measurements of decoherence.