Fast production of ultracold sodium gases using light–induced desorption and optical trapping
نویسندگان
چکیده
In this paper, we report on the production of a Bose–Einstein condensate (BEC) of sodium using light–induced desorption as an atomic source. We load about 2 × 10 atoms in a MOT from this source with a ∼ 6 s loading time constant. The MOT lifetime can be kept around 27 s by turning off the desorbing light after loading. We show that the pressure drops down by a factor of 40 in less than 100 ms after the extinction of the desorbing light, restoring the low background pressure for evaporation. Using this technique, a Na BEC with 10 atoms is produced after a 6 s evaporation in an optical dipole trap.
منابع مشابه
FAST TRACK COMMUNICATION Reproducible dynamic dark ring lattices for ultracold atoms
We demonstrate the generation of highly adaptable and reproducible dark optical ring lattices, which do not require Laguerre–Gauss beams or interferometric stability. In conjunction with a magnetic trap, these scanned 2D intensity distributions will enable low-decoherence trapping and straightforward dynamic manipulation of ultracold species in annular geometries using low-intensity regions of ...
متن کاملAtom chip apparatus for experiments with ultracold rubidium and potassium gases.
We present a dual chamber atom chip apparatus for generating ultracold (87)Rb and (39)K atomic gases. The apparatus produces quasi-pure Bose-Einstein condensates of 10(4) (87)Rb atoms in an atom chip trap that features a dimple and good optical access. We have also demonstrated production of ultracold (39)K and subsequent loading into the chip trap. We describe the details of the dual chamber v...
متن کاملUltracold quantum gases in optical lattices
Ultracold bosonic and fermionic quantum gases are versatile and robust systems for probing fundamental condensed-matter physics problems1–12, as well as fi nding applications in quantum optics and quantum information processing13 and understanding atomic and molecular physics14,15. Storing such ultracold quantum gases in artifi cial periodic potentials of light has opened innovative manipulatio...
متن کاملQuantum Optical Lattices for Emergent Many-Body Phases of Ultracold Atoms.
Confining ultracold gases in cavities creates a paradigm of quantum trapping potentials. We show that this allows us to bridge models with global collective and short-range interactions as novel quantum phases possess properties of both. Some phases appear solely due to quantum light-matter correlations. Because of a global, but spatially structured, interaction, the competition between quantum...
متن کاملElectrostatic Trapping of Ultracold Polar Molecules
This thesis describes the progress made in the production, spectroscopic characterization, and confinement of ultracold, polar NaCs molecules. A two-species magneto-optical trap (MOT) for the simultaneous cooling and trapping of sodium and cesium atoms is utilized for the creation of ultracold NaCs molecules via photoassociation. The molecules are detected via resonance-enhanced multi-photon io...
متن کامل