论文标题
三叶岩和蝴蝶Rydberg分子中的振动相互作用
Vibronic interactions in trilobite and butterfly Rydberg molecules
论文作者
论文摘要
Ultralong-Range Rydberg分子在夸张的尺度下为分子物理提供了令人兴奋的测试床。在所谓的三叶岩和蝴蝶rydberg分子中，由于强烈的非绝热耦合而导致径向振荡和绝热势能曲线快速能量变化引起的强烈的非绝热耦合，可能会失败。我们利用振动系统的精确耦合通道处理来观察BORPENHEEMER物理学的崩溃，例如在绝热势曲线中明显避免的避免穿越的明显交叉点的非绝热捕获和分子状态的衰减。即使对于远离避免穿越的振动状态，单个通道模型也仅在将对角非绝热校正到Born-Oppheheimer电位之后才有数量足够。我们的结果表明，将非绝热物理学纳入超范围rydberg分子的描述以及测得的振动光谱的解释的重要性。
Ultralong-range Rydberg molecules provide an exciting testbed for molecular physics at exaggerated scales. In the so-called trilobite and butterfly Rydberg molecules, the Born-Oppenheimer approximation can fail due to strong non-adiabatic couplings arising from the combination of radial oscillations and rapid energy variations in the adiabatic potential energy curves. We utilize an accurate coupled-channel treatment of the vibronic system to observe the breakdown of Born-Oppenheimer physics, such as non-adiabatic trapping and decay of molecular states found near pronounced avoided crossings in the adiabatic potential curves. Even for vibrational states localized far away from avoided crossings, a single channel model is quantitatively sufficient only after including the diagonal non-adiabatic corrections to the Born-Oppenheimer potentials. Our results indicate the importance of including non-adiabatic physics in the description of ultralong-range Rydberg molecules and in the interpretation of measured vibronic spectra.
