Time Dependent Acceleration Measurements Through Synthetic Gauge Fields

Sk Noor Nabi, Sunayana Dutta, Saurabh Basu

Gediminas Juzeliūnas, Julius Ruseckas, Ian B. Spielman +3 more

Brandon Anderson, Jacob M. Taylor, Victor M. Galitski

We propose a compact atom interferometry scheme for measuring weak, time-dependent accelerations. Our proposal uses an ensemble of dilute trapped bosons with two internal states that couple to a synthetic gauge field with opposite charges. The trapped gauge field couples spin to momentum to allow time-dependent accelerations to be continuously imparted on the internal states. We generalize this system to reduce noise and estimate the sensitivity of such a system to be $S~{10}^{\ensuremath{-}7}\frac{\text{m}/{\text{s}}^{2}}{\sqrt{\text{Hz}}}$.

Yuqing Li, Jia-Hui Zhang, Yunfei Wang +7 more

Abstract Synthetic gauge fields in synthetic dimensions are now of great interest. This concept provides a convenient manner for exploring topological phases of matter. Here, we report on the first experimental realization of an atom-optically synthetic gauge field based on the synthetic momentum-state lattice of a Bose gas of 133Cs atoms, where magnetically controlled Feshbach resonance is used to tune the interacting lattice into noninteracting regime. Specifically, we engineer a noninteracting one-dimensional lattice into a two-leg ladder with tunable synthetic gauge fields. We observe the flux-dependent populations of atoms and measure the gauge field-induced chiral currents in the two legs. We also show that an inhomogeneous gauge field could control the atomic transport in the ladder. Our results lay the groundwork for using a clean noninteracting synthetic momentum-state lattice to study the gauge field-induced topological physics.

Qi Zhou