论文标题
观察因原子四极极化而引起的效果
Observation of effects due to an atom's electric quadrupole polarizability
论文作者
论文摘要
物质对田地的反应是物理科学的基础，从粒子物理学到天体物理学，从化学到生物物理学。我们观察到原子对第二和更高阶的电场的反应；这是由原子的四极极化性和超极化性引起的。我们探究了一个单一的原子离子，该离子对Rydberg表示并局限于Paul Trap的电场。四极捕获场导致原子能水平移动并引起光谱边带。通过理论计算很好地描述了观察到的效果。
The response of matter to fields underlies the physical sciences, from particle physics to astrophysics, and from chemistry to biophysics. We observe an atom's response to an electric quadrupole field to second- and higher orders; this arises from the atom's electric quadrupole polarizability and hyperpolarizabilities. We probe a single atomic ion which is excited to Rydberg states and confined in the electric fields of a Paul trap. The quadrupolar trapping fields cause atomic energy level shifts and give rise to spectral sidebands. The observed effects are described well by theory calculations.
