Fast production of Bose-Einstein condensates of metastable Helium

Abstract

We report on the Bose-Einstein condensation of metastable Helium-4 atoms using a hybrid approach, consisting of a magnetic quadrupole and a crossed optical dipole trap. In our setup we cross the phase transition with 2x10^6 atoms, and we obtain pure condensates of 5x10^5 atoms in the optical trap. This novel approach to cooling Helium-4 provides enhanced cycle stability, large optical access to the atoms and results in production of a condensate every 6 seconds - a factor 3 faster than the state-of-the-art. This speed-up will dramatically reduce the data acquisition time needed for the measurement of many particle correlations, made possible by the ability of metastable Helium to be detected individually.

References in corpus (9)

• Single-Atom Resolved Fluorescence Imaging of an Atomic Mott Insulator
• A Quantum Gas Microscope for Fermionic Atoms
• An atomic Hong-Ou-Mandel experiment
• Fast, Runaway Evaporative Cooling to Bose-Einstein Condensation in Optical Traps
• Ideal n-body correlations with massive particles
• Theory of correlations between ultra-cold bosons released from an optical lattice
• Bose-Einstein condensate of metastable helium for quantum correlation experiments
• Three-dimensional laser cooling at the Doppler limit
• Bose-Einstein Condensation and Spin Mixtures of Optically Trapped Metastable Helium

Cited by in corpus (11)

• Momentum-resolved observation of thermal and quantum depletion in an interacting Bose gas
• Certifying the adiabatic preparation of ultracold lattice bosons in the vicinity of the Mott transition
• Observation of $1/k^4$-tails after expansion of Bose-Einstein Condensates with impurities
• Two-body collisions in the time-of-flight dynamics of lattice Bose superfluids
• $\Lambda$-enhanced gray molasses in a tetrahedral laser beam geometry
• Suppression of Bogoliubov momentum pairing and emergence of non-Gaussian correlations in ultracold interacting Bose gases
• Cooling All External Degrees of Freedom of Optically Trapped Chromium Atoms Using Gray Molasses
• Rapid generation of metastable helium Bose-Einstein condensates
• Rapid generation and number-resolved detection of spinor Rubidium Bose-Einstein condensates
• Tomography of a single-atom-resolved detector in the presence of shot-to-shot number fluctuations
• Observation of universal non-Gaussian statistics of the order parameter across a continuous phase transition