标题： 一个原子在绝热射频势中的几何相位 显示英文标题

标题： Geometric phase of an atom inside an adiabatic radio frequency potential

摘要： 我们研究了原子在一个绝热射频（rf）势中的几何相位，该势由静磁场（B场）和时变射频场构成。 原子质心的空间运动被证明会在沿局域B场演化的绝热原子超精细自旋上产生一个几何相位，即Berry相位。 此相位被发现依赖于原子质心半经典轨迹上的静态B场以及总B场的“有效磁场”，包括振荡的射频场。 为几个近期利用绝热射频势的原子干涉实验和建议提供了具体计算。 显示英文摘要

摘要： We investigate the geometric phase of an atom inside an adiabatic radio frequency (rf) potential created from a static magnetic field (B-field) and a time dependent rf field. The spatial motion of the atomic center of mass is shown to give rise to a geometric phase, or Berry's phase, to the adiabatically evolving atomic hyperfine spin along the local B-field. This phase is found to depend on both the static B-field along the semi-classical trajectory of the atomic center of mass and an ``effective magnetic field'' of the total B-field, including the oscillating rf field. Specific calculations are provided for several recent atom interferometry experiments and proposals utilizing adiabatic rf potentials.