紧凑蒸气室中的核四极共振：从NMR到NQR相互作用区的交叉
Nuclear quadrupole resonances in compact vapor cells: the crossover from the NMR to the NQR interaction regimes
摘要：
我们提出了第一个实验研究，映射的转换核四极共振从纯核四极制度的四极扰动塞曼制度。这种变换提出了一个有趣的量子力学问题，因为量子化轴从沿着电场梯度张量的轴排列变为沿着磁场排列。我们使用一个1立方毫米的立方原子池，用不同的材料做池壁，获得了I = 3/2 131-π的大核四极位移。当磁相互作用和四极相互作用的大小相当时，微扰理论不适合计算跃迁能。而不是使用微扰理论，我们比较我们的数据，理论计算使用Liouvillian方法，并找到很好的协议。
英文摘要：
We present the first experimental study that maps the transformation of nuclear quadrupole resonances from the pure nuclear quadrupole regime to the quadrupole-perturbed Zeeman regime. The transformation presents an interesting quantum-mechanical problem, since the quantization axis changes from being aligned along the axis of the electric-field gradient tensor to being aligned along the magnetic field. We achieve large nuclear quadrupole shifts for I = 3/2 131-Xe by using a 1 mm^3 cubic cell with walls of different materials. When the magnetic and quadrupolar interactions are of comparable size, perturbation theory is not suitable for calculating the transition energies. Rather than use perturbation theory, we compare our data to theoretical calculations using a Liouvillian approach and find excellent agreement.
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