Ramsey interferometry using the Zeeman sublevels in a spin-2 Bose gas

Abstract

We perform atom interferometry using the Zeeman sublevels of a spin-2 Bose-Einstein condensate of ${}^{87}$Rb. The observed fringes are strongly peaked, and fringe repetition rates higher than the fundamental Ramsey frequency are found in agreement with a simple theory based on spin rotations. With a suitable choice of initial states, the interferometer could function as a useful tool for magnetometry and studies of spinor dynamics in general.

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• Dissipation-assisted coherence formation in a spinor quantum gas
• Efficient two-mode interferometers with spinor Bose-Einstein condensates
• Single-shot Stern-Gerlach magnetic gradiometer with an expanding cloud of cold cesium atoms
• Metastable spin-phase diagrams in antiferromagnetic Bose-Einstein condensates
• Quantum sensing with ultracold simulators in lattice and ensemble systems: a review
• Effect of trap symmetry and atom-atom interactions on a trapped atom interferometer with internal state labelling
• Multi-state interferometric measurement of nonlinear AC Stark shift
• Thermal effects on the spin domain phases of high spin-f Bose-Einstein condensates with rotational symmetries
• A Radio-Frequency Emitter Design for the Low-Frequency Regime in Atomic Experiments