We experimentally demonstrate two multidimensional atom interferometers capable of measuring both the magnitude and direction of applied inertial forces. These interferometers do not rely on the ubiquitous light-pulses of traditional atom sensors, but are instead built from an innovative design that operates entirely within the Bloch bands of an optical lattice formed by interfering laser beams. Through time-dependent control of the position of the lattice in three-dimensional space, we realize simultaneous Bloch oscillations in two dimensions, and a vector atomic Michelson interferometer. Fits to the observed Bloch oscillations demonstrate the measurement of an applied acceleration of $2g$ along two axes, where $g$ is the average gravitational acceleration at the Earth's surface. For the Michelson interferometer, we perform Bayesian inferencing from a 49-channel output by repeating experiments for selected examples of two-axis accelerations. We demonstrate the resulting accuracy and sensitivity for vector parameter estimation. Our acceleration can be measured from a single experimental run and does not require repeated shots to construct a fringe. We find the performance of our device to be near the quantum limit for the interferometer size and quantum detection efficiency of the atoms. We discuss the reconfigurability of the vector accelerometer and the pathway toward further sensitivity.
Spin squeezing enhanced dual species atom interferometric accelerometer employing large momentum transfer for precision test of the equivalence principle
Tailoring Synthetic Gauge Fields in Ultracold Atoms via Spatially Engineered Vector Beams
State Key Laboratory of Optical Field Manipulation Science and Technology, Chinese Academy of Sciences（中国科学院光学场调控科学与技术重点实验室）；Research Center on Vector Optical Fields, Institute of Optics and Electronics, Chinese Academy of Sciences（中国科学院光电技术研究所矢量光场研究中心）；College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences（中国科学院大学材料科学与光电技术学院）
Geometric Phases generated by the non-trivial spatial topology of static vector fields coupled to a neutral spin-endowed particle. Application to 171Yb atoms trapped in a 2D optical lattice
Deterministic nuclear spin squeezing and squeezing by continuous measurement using vector and tensor light shifts
Laboratoire Kastler Brossel, ENS-Université PSL, CNRS, Université de la Sorbonne et Collège de France（卡斯勒-布罗塞尔实验室，巴黎高等师范学院-巴黎文理研究大学，法国国家科学研究中心，索邦大学及法兰西公学院）
Spin-orbit coupling of optical vector vortices in coherently prepared media
Institute of Theoretical Physics and Astronomy, Vilnius University（维尔纽斯大学理论物理与天文研究所）；Laser Research Center, Vilnius University（维尔纽斯大学激光研究中心）；Département Physique, Faculté des Sciences, Aix-Marseille Université（艾克斯-马赛大学理学院物理系）；Baltic Institute of Advanced Technology（波罗的海高级技术研究所）
Optical vector network analysis of ultra-narrow transitions in $^{166}$Er$^{3+}$:$^7$LiYF$_4$
我们提出了光学矢量网络分析（OVNA）的同位素纯化$^{166}$ Er $^{3+}$：$^7$ LiYF $_4$晶体。OVNA方法是基于调制光边带的产生和检测，通过使用射频矢量网络分析仪。该技术广泛用于微波光子学领域，用于表征光学器件（如滤波器和高Q谐振器）的光学响应。然而，密集的固态原子系综诱导一个光学边带上的大的相移，这导致在测量的传输响应上的额外功能的外观。我们提出了一个简单的理论模型，它准确地描述了所观察到的光谱，并有助于重建的固态原子系综的吸收分布，以及相应的变化，在附近的原子共振的折射率。
